CVE-2026-6100 (GCVE-0-2026-6100)

Vulnerability from cvelistv5 – Published: 2026-04-13 17:15 – Updated: 2026-06-30 03:18
VLAI
Title
Use-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressure
Summary
Use-after-free (UAF) was possible in the `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when a memory allocation fails with a `MemoryError` and the decompression instance is re-used. This scenario can be triggered if the process is under memory pressure. The fix cleans up the dangling pointer in this specific error condition. The vulnerability is only present if the program re-uses decompressor instances across multiple decompression calls even after a `MemoryError` is raised during decompression. Using the helper functions to one-shot decompress data such as `lzma.decompress()`, `bz2.decompress()`, `gzip.decompress()`, and `zlib.decompress()` are not affected as a new decompressor instance is used per call. If the decompressor instance is not re-used after an error condition, this usage is similarly not vulnerable.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
PSF
References
URL Tags
https://github.com/python/cpython/pull/148396 patch
https://mail.python.org/archives/list/security-an… vendor-advisory
https://github.com/python/cpython/issues/148395 issue-tracking
https://github.com/python/cpython/commit/6a5f79c8… patch
https://github.com/python/cpython/commit/8fc66aef… patch
https://github.com/python/cpython/commit/c3cf71c3… patch
https://github.com/python/cpython/commit/47128e64… patch
https://github.com/python/cpython/commit/e20c6c96… patch
http://www.openwall.com/lists/oss-security/2026/0…
https://access.redhat.com/security/cve/CVE-2026-6100 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2457932 issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:13812 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:16699 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:10711 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19064 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19019 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:11077 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:11062 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:10950 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19590 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:17619 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19549 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26187 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19571 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19570 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:13692 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:21682 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14653 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:17525 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19576 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14652 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14656 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:10949 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:10774 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:10745 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19216 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19175 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19177 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19176 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25096 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30078 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30089 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30088 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30087 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:10140 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:10141 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8822 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:8824 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:10117 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:9228 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:11768 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:21275 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version
Python Software Foundation CPython Affected: 0 , < 3.13.14 (python)
Affected: 3.14.0a1 , < 3.14.5rc1 (python)
Affected: 3.15.0a1 , < 3.15.0b1 (python)
Create a notification for this product.
Red Hat Middleware Containers for OpenShift     cpe:/a:redhat:rhosemc:1.0::el8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream EUS (v. 10.0)     cpe:/o:redhat:enterprise_linux_eus:10.0
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream (v. 10)     cpe:/o:redhat:enterprise_linux:10.1
    cpe:/o:redhat:enterprise_linux:10.2
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream (v. 8)     cpe:/a:redhat:enterprise_linux:8::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream AUS (v.8.4)     cpe:/a:redhat:rhel_aus:8.4::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)     cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream AUS (v.8.6)     cpe:/a:redhat:rhel_aus:8.6::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream E4S (v.8.6)     cpe:/a:redhat:rhel_e4s:8.6::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream TUS (v.8.6)     cpe:/a:redhat:rhel_tus:8.6::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream E4S (v.8.8)     cpe:/a:redhat:rhel_e4s:8.8::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream TUS (v.8.8)     cpe:/a:redhat:rhel_tus:8.8::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream E4S (v.9.0)     cpe:/a:redhat:rhel_e4s:9.0::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream E4S (v.9.2)     cpe:/a:redhat:rhel_e4s:9.2::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream EUS (v.9.4)     cpe:/a:redhat:rhel_eus:9.4::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream EUS (v.9.6)     cpe:/a:redhat:rhel_eus:9.6::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AppStream (v. 9)     cpe:/a:redhat:enterprise_linux:9::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS EUS (v. 10.0)     cpe:/o:redhat:enterprise_linux_eus:10.0
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS (v. 10)     cpe:/o:redhat:enterprise_linux:10.1
    cpe:/o:redhat:enterprise_linux:10.2
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS (v. 8)     cpe:/o:redhat:enterprise_linux:8::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS AUS (v.8.4)     cpe:/o:redhat:rhel_aus:8.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)     cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS AUS (v.8.6)     cpe:/o:redhat:rhel_aus:8.6::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS E4S (v.8.6)     cpe:/o:redhat:rhel_e4s:8.6::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS TUS (v.8.6)     cpe:/o:redhat:rhel_tus:8.6::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS E4S (v.8.8)     cpe:/o:redhat:rhel_e4s:8.8::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS TUS (v.8.8)     cpe:/o:redhat:rhel_tus:8.8::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS E4S (v.9.0)     cpe:/o:redhat:rhel_e4s:9.0::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS E4S (v.9.2)     cpe:/o:redhat:rhel_e4s:9.2::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS EUS (v.9.4)     cpe:/o:redhat:rhel_eus:9.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS EUS (v.9.6)     cpe:/o:redhat:rhel_eus:9.6::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux BaseOS (v. 9)     cpe:/o:redhat:enterprise_linux:9::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)     cpe:/o:redhat:enterprise_linux_eus:10.0
Create a notification for this product.
Red Hat Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)     cpe:/o:redhat:enterprise_linux:10.1
    cpe:/o:redhat:enterprise_linux:10.2
Create a notification for this product.
Red Hat Red Hat Enterprise Linux CRB (v. 8)     cpe:/a:redhat:enterprise_linux:8::crb
Create a notification for this product.
Red Hat Red Hat CodeReady Linux Builder EUS (v.9.4)     cpe:/a:redhat:rhel_eus:9.4::crb
Create a notification for this product.
Red Hat Red Hat CodeReady Linux Builder EUS (v.9.6)     cpe:/a:redhat:rhel_eus:9.6::crb
Create a notification for this product.
Red Hat Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)     cpe:/a:redhat:enterprise_linux:9::crb
Create a notification for this product.
Red Hat Red Hat AI Inference Server 3.2     cpe:/a:redhat:ai_inference_server:3.2::el9
Create a notification for this product.
Red Hat Red Hat AI Inference Server 3.3     cpe:/a:redhat:ai_inference_server:3.3::el9
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AI 3.3     cpe:/a:redhat:enterprise_linux_ai:3.3::el9
Create a notification for this product.
Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
Create a notification for this product.
Red Hat Red Hat Update Infrastructure 5     cpe:/a:redhat:rhui:5::el9
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux AI (RHEL AI) 3     cpe:/a:redhat:enterprise_linux_ai:3
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Credits
Ryan Hileman Stan Ulbrych Seth Larson Stan Ulbrych Ryan Hileman
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6100",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-13T19:21:03.412763Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-13T19:21:10.878Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2026-04-13T19:29:27.322Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/13/10"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "cpes": [
              "cpe:/a:redhat:rhosemc:1.0::el8"
            ],
            "defaultStatus": "affected",
            "product": "Middleware Containers for OpenShift",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux_eus:10.0"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream EUS (v. 10.0)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10.1",
              "cpe:/o:redhat:enterprise_linux:10.2"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream (v. 10)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:enterprise_linux:8::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream (v. 8)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_aus:8.4::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream AUS (v.8.4)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_aus:8.6::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream AUS (v.8.6)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_e4s:8.6::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream E4S (v.8.6)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_tus:8.6::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream TUS (v.8.6)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_e4s:8.8::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream E4S (v.8.8)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_tus:8.8::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream TUS (v.8.8)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_e4s:9.0::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream E4S (v.9.0)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_e4s:9.2::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream E4S (v.9.2)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_eus:9.4::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream EUS (v.9.4)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_eus:9.6::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream EUS (v.9.6)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:enterprise_linux:9::appstream"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AppStream (v. 9)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux_eus:10.0"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS EUS (v. 10.0)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10.1",
              "cpe:/o:redhat:enterprise_linux:10.2"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS (v. 10)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS (v. 8)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_aus:8.4::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS AUS (v.8.4)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_aus:8.6::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS AUS (v.8.6)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_e4s:8.6::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS E4S (v.8.6)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_tus:8.6::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS TUS (v.8.6)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_e4s:8.8::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS E4S (v.8.8)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_tus:8.8::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS TUS (v.8.8)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_e4s:9.0::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS E4S (v.9.0)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_e4s:9.2::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS E4S (v.9.2)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_eus:9.4::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS EUS (v.9.4)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:rhel_eus:9.6::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS EUS (v.9.6)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:9::baseos"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux BaseOS (v. 9)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux_eus:10.0"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10.1",
              "cpe:/o:redhat:enterprise_linux:10.2"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:enterprise_linux:8::crb"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux CRB (v. 8)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_eus:9.4::crb"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat CodeReady Linux Builder EUS (v.9.4)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhel_eus:9.6::crb"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat CodeReady Linux Builder EUS (v.9.6)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:enterprise_linux:9::crb"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:ai_inference_server:3.2::el9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat AI Inference Server 3.2",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:ai_inference_server:3.3::el9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat AI Inference Server 3.3",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:enterprise_linux_ai:3.3::el9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AI 3.3",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:hummingbird:1"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Hardened Images",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:rhui:5::el9"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Update Infrastructure 5",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:6"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux 6",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:7"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/a:redhat:enterprise_linux_ai:3"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux AI (RHEL AI) 3",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          }
        ],
        "datePublic": "2026-04-13T17:15:47.606Z",
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in Python\u0027s decompression modules, including `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile`. This vulnerability, a use-after-free, can occur if a program attempts to re-use a decompression object after a memory allocation error, especially when the system is experiencing high memory usage. Exploitation of this flaw could potentially allow an attacker to execute arbitrary code or access sensitive data. The vulnerability is only present if the program re-uses decompressor instances across multiple decompression calls even after a `MemoryError` is raised during decompression. Using the helper functions to one-shot decompress data such as `lzma.decompress()`, `bz2.decompress()`, `gzip.decompress()`, and `zlib.decompress()` are not affected as a new decompressor instance is used per call. If the decompressor instance is not re-used after an error condition, this usage is similarly not vulnerable."
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "namespace": "https://access.redhat.com/security/updates/classification/",
                "value": "Important"
              },
              "type": "Red Hat severity rating"
            }
          },
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "format": "CVSS"
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-825",
                "description": "Expired Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-30T03:18:10.501Z",
          "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
          "shortName": "redhat-SADP"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2026-6100"
          },
          {
            "name": "RHBZ#2457932",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457932"
          },
          {
            "tags": [
              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6100.json"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:13812"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:16699"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:10711"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19064"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19019"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:11077"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:11062"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:10950"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19590"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:17619"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19549"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:26187"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19571"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19570"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:13692"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:21682"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:14653"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:17525"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19576"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:14652"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:14656"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:10949"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:10774"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:10745"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19216"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19175"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19177"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:19176"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:25096"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:30078"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:30089"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:30088"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:30087"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:10140"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:10141"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:8822"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:8824"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:10117"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:9228"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:11768"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:21275"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:13812: Middleware Containers for OpenShift"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:16699: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:10711: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19064: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19019: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:11077: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux BaseOS (v. 8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:11062: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:10950: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19590: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4), Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:17619: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6), Red Hat Enterprise Linux BaseOS AUS (v.8.6), Red Hat Enterprise Linux BaseOS E4S (v.8.6), Red Hat Enterprise Linux BaseOS TUS (v.8.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19549: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8), Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:26187: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19571: Red Hat Enterprise Linux AppStream E4S (v.9.0), Red Hat Enterprise Linux BaseOS E4S (v.9.0)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19570: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:13692: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:21682: Red Hat CodeReady Linux Builder EUS (v.9.4), Red Hat Enterprise Linux AppStream EUS (v.9.4), Red Hat Enterprise Linux BaseOS EUS (v.9.4)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:14653: Red Hat CodeReady Linux Builder EUS (v.9.4), Red Hat Enterprise Linux AppStream EUS (v.9.4)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:17525: Red Hat CodeReady Linux Builder EUS (v.9.4), Red Hat Enterprise Linux AppStream EUS (v.9.4)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19576: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:14652: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:14656: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:10949: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:10774: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:10745: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19216: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19175: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19177: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:19176: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:25096: Red Hat AI Inference Server 3.2"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:30078: Red Hat AI Inference Server 3.3"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:30089: Red Hat AI Inference Server 3.3"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:30088: Red Hat AI Inference Server 3.3"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:30087: Red Hat AI Inference Server 3.3"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:10140: Red Hat Enterprise Linux AI 3.3"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:10141: Red Hat Enterprise Linux AI 3.3"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:8822: Red Hat Hardened Images"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:8824: Red Hat Hardened Images"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:10117: Red Hat Hardened Images"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:9228: Red Hat Hardened Images"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:11768: Red Hat Update Infrastructure 5"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:21275: Red Hat Update Infrastructure 5"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-04-13T18:01:31.970Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-04-13T17:15:47.606Z",
            "value": "Made public."
          }
        ],
        "title": "python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules",
        "workarounds": [
          {
            "lang": "en",
            "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
          }
        ],
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "CPython",
          "repo": "https://github.com/python/cpython",
          "vendor": "Python Software Foundation",
          "versions": [
            {
              "lessThan": "3.13.14",
              "status": "affected",
              "version": "0",
              "versionType": "python"
            },
            {
              "lessThan": "3.14.5rc1",
              "status": "affected",
              "version": "3.14.0a1",
              "versionType": "python"
            },
            {
              "lessThan": "3.15.0b1",
              "status": "affected",
              "version": "3.15.0a1",
              "versionType": "python"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Ryan Hileman"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Stan Ulbrych"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "Seth Larson"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Stan Ulbrych"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Ryan Hileman"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Use-after-free (UAF) was possible in the `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when a memory allocation fails with a `MemoryError` and the decompression instance is re-used. This scenario can be triggered if the process is under memory pressure. The fix cleans up the dangling pointer in this specific error condition.\u003cbr\u003e\u003cbr\u003eThe vulnerability is only present if the program re-uses decompressor instances across multiple decompression calls even after a `MemoryError` is raised during decompression. Using the helper functions to one-shot decompress data such as `lzma.decompress()`, `bz2.decompress()`, `gzip.decompress()`, and `zlib.decompress()` are not affected as a new decompressor instance is used per call. If the decompressor instance is not re-used after an error condition, this usage is similarly not vulnerable."
            }
          ],
          "value": "Use-after-free (UAF) was possible in the `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when a memory allocation fails with a `MemoryError` and the decompression instance is re-used. This scenario can be triggered if the process is under memory pressure. The fix cleans up the dangling pointer in this specific error condition.\n\nThe vulnerability is only present if the program re-uses decompressor instances across multiple decompression calls even after a `MemoryError` is raised during decompression. Using the helper functions to one-shot decompress data such as `lzma.decompress()`, `bz2.decompress()`, `gzip.decompress()`, and `zlib.decompress()` are not affected as a new decompressor instance is used per call. If the decompressor instance is not re-used after an error condition, this usage is similarly not vulnerable."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416 Use after free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-10T18:58:01.371Z",
        "orgId": "28c92f92-d60d-412d-b760-e73465c3df22",
        "shortName": "PSF"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/pull/148396"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/HTWB2Z6KT5QQX4RYEZAFININDHNOSIF3/"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/python/cpython/issues/148395"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/6a5f79c8d7bbf22b083b240910c7a8781a59437d"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/8fc66aef6d7b3ae58f43f5c66f9366cc8cbbfcd2"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/c3cf71c3366fe49acb776a639405c0eea6169c20"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/47128e64f98c3a20271138a98c2922bea2a3ee0e"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/e20c6c9667c99ecaab96e1a2b3767082841ffc8b"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Use-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressure",
      "x_generator": {
        "engine": "Vulnogram 0.6.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22",
    "assignerShortName": "PSF",
    "cveId": "CVE-2026-6100",
    "datePublished": "2026-04-13T17:15:47.606Z",
    "dateReserved": "2026-04-10T21:13:45.428Z",
    "dateUpdated": "2026-06-30T03:18:10.501Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-6100",
      "date": "2026-06-29",
      "epss": "0.00517",
      "percentile": "0.40043"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-6100\",\"sourceIdentifier\":\"cna@python.org\",\"published\":\"2026-04-13T18:16:31.297\",\"lastModified\":\"2026-06-30T03:21:11.023\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Use-after-free (UAF) was possible in the `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when a memory allocation fails with a `MemoryError` and the decompression instance is re-used. This scenario can be triggered if the process is under memory pressure. The fix cleans up the dangling pointer in this specific error condition.\\n\\nThe vulnerability is only present if the program re-uses decompressor instances across multiple decompression calls even after a `MemoryError` is raised during decompression. Using the helper functions to one-shot decompress data such as `lzma.decompress()`, `bz2.decompress()`, `gzip.decompress()`, and `zlib.decompress()` are not affected as a new decompressor instance is used per call. If the decompressor instance is not re-used after an error condition, this usage is similarly not vulnerable.\"}],\"affected\":[{\"source\":\"cna@python.org\",\"affectedData\":[{\"vendor\":\"Python Software Foundation\",\"product\":\"CPython\",\"defaultStatus\":\"unaffected\",\"repo\":\"https://github.com/python/cpython\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"3.13.14\",\"versionType\":\"python\",\"status\":\"affected\"},{\"version\":\"3.14.0a1\",\"lessThan\":\"3.14.5rc1\",\"versionType\":\"python\",\"status\":\"affected\"},{\"version\":\"3.15.0a1\",\"lessThan\":\"3.15.0b1\",\"versionType\":\"python\",\"status\":\"affected\"}]}]},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"affectedData\":[{\"vendor\":\"Red Hat\",\"product\":\"Middleware Containers for OpenShift\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhosemc:1.0::el8\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream EUS (v. 10.0)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux_eus:10.0\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream (v. 10)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:10.1\",\"cpe:/o:redhat:enterprise_linux:10.2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream (v. 8)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:enterprise_linux:8::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream AUS (v.8.4)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_aus:8.4::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_eus_long_life:8.4::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream AUS (v.8.6)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_aus:8.6::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream E4S (v.8.6)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_e4s:8.6::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream TUS (v.8.6)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_tus:8.6::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream E4S (v.8.8)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_e4s:8.8::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream TUS (v.8.8)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_tus:8.8::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream E4S (v.9.0)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_e4s:9.0::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream E4S (v.9.2)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_e4s:9.2::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream EUS (v.9.4)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_eus:9.4::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream EUS (v.9.6)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_eus:9.6::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AppStream (v. 9)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:enterprise_linux:9::appstream\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS EUS (v. 10.0)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux_eus:10.0\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS (v. 10)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:10.1\",\"cpe:/o:redhat:enterprise_linux:10.2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS (v. 8)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:8::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS AUS (v.8.4)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_aus:8.4::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_eus_long_life:8.4::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS AUS (v.8.6)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_aus:8.6::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS E4S (v.8.6)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_e4s:8.6::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS TUS (v.8.6)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_tus:8.6::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS E4S (v.8.8)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_e4s:8.8::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS TUS (v.8.8)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_tus:8.8::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS E4S (v.9.0)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_e4s:9.0::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS E4S (v.9.2)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_e4s:9.2::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS EUS (v.9.4)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_eus:9.4::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS EUS (v.9.6)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:rhel_eus:9.6::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux BaseOS (v. 9)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:9::baseos\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux_eus:10.0\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:10.1\",\"cpe:/o:redhat:enterprise_linux:10.2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux CRB (v. 8)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:enterprise_linux:8::crb\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat CodeReady Linux Builder EUS (v.9.4)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_eus:9.4::crb\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat CodeReady Linux Builder EUS (v.9.6)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhel_eus:9.6::crb\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:enterprise_linux:9::crb\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat AI Inference Server 3.2\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:ai_inference_server:3.2::el9\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat AI Inference Server 3.3\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:ai_inference_server:3.3::el9\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AI 3.3\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:enterprise_linux_ai:3.3::el9\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Hardened Images\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:hummingbird:1\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Update Infrastructure 5\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:rhui:5::el9\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 6\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:6\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 7\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:7\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux AI (RHEL AI) 3\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/a:redhat:enterprise_linux_ai:3\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8\",\"defaultStatus\":\"unaffected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:8\"]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@python.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-04-13T19:21:03.412763Z\",\"id\":\"CVE-2026-6100\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"cna@python.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"},{\"lang\":\"en\",\"value\":\"CWE-787\"}]},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-825\"}]}],\"references\":[{\"url\":\"https://github.com/python/cpython/commit/47128e64f98c3a20271138a98c2922bea2a3ee0e\",\"source\":\"cna@python.org\"},{\"url\":\"https://github.com/python/cpython/commit/6a5f79c8d7bbf22b083b240910c7a8781a59437d\",\"source\":\"cna@python.org\"},{\"url\":\"https://github.com/python/cpython/commit/8fc66aef6d7b3ae58f43f5c66f9366cc8cbbfcd2\",\"source\":\"cna@python.org\"},{\"url\":\"https://github.com/python/cpython/commit/c3cf71c3366fe49acb776a639405c0eea6169c20\",\"source\":\"cna@python.org\"},{\"url\":\"https://github.com/python/cpython/commit/e20c6c9667c99ecaab96e1a2b3767082841ffc8b\",\"source\":\"cna@python.org\"},{\"url\":\"https://github.com/python/cpython/issues/148395\",\"source\":\"cna@python.org\"},{\"url\":\"https://github.com/python/cpython/pull/148396\",\"source\":\"cna@python.org\"},{\"url\":\"https://mail.python.org/archives/list/security-announce@python.org/thread/HTWB2Z6KT5QQX4RYEZAFININDHNOSIF3/\",\"source\":\"cna@python.org\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2026/04/13/10\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:10117\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:10140\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:10141\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:10711\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:10745\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:10774\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:10949\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:10950\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:11062\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:11077\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:11768\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:13692\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:13812\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:14652\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:14653\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:14656\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:16699\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:17525\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:17619\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19019\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19064\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19175\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19176\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19177\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19216\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19549\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19570\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19571\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19576\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19590\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:21275\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:21682\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:25096\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:26187\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:30078\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:30087\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:30088\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:30089\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:8822\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:8824\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:9228\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/security/cve/CVE-2026-6100\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2457932\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6100.json\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2026/04/13/10\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-04-13T19:29:27.322Z\"}}, {\"title\": \"python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules\", \"metrics\": [{\"other\": {\"type\": \"Red Hat severity rating\", \"content\": {\"value\": \"Important\", \"namespace\": \"https://access.redhat.com/security/updates/classification/\"}}}, {\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"cpes\": [\"cpe:/a:redhat:rhosemc:1.0::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Middleware Containers for OpenShift\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux_eus:10.0\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream EUS (v. 10.0)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:10.1\", \"cpe:/o:redhat:enterprise_linux:10.2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream (v. 10)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:enterprise_linux:8::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream (v. 8)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_aus:8.4::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream AUS (v.8.4)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_eus_long_life:8.4::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_aus:8.6::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream AUS (v.8.6)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_e4s:8.6::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream E4S (v.8.6)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_tus:8.6::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream TUS (v.8.6)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_e4s:8.8::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream E4S (v.8.8)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_tus:8.8::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream TUS (v.8.8)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_e4s:9.0::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream E4S (v.9.0)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_e4s:9.2::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream E4S (v.9.2)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_eus:9.4::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream EUS (v.9.4)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_eus:9.6::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream EUS (v.9.6)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:enterprise_linux:9::appstream\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AppStream (v. 9)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux_eus:10.0\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS EUS (v. 10.0)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:10.1\", \"cpe:/o:redhat:enterprise_linux:10.2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS (v. 10)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:8::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS (v. 8)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_aus:8.4::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS AUS (v.8.4)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_eus_long_life:8.4::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_aus:8.6::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS AUS (v.8.6)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_e4s:8.6::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS E4S (v.8.6)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_tus:8.6::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS TUS (v.8.6)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_e4s:8.8::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS E4S (v.8.8)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_tus:8.8::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS TUS (v.8.8)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_e4s:9.0::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS E4S (v.9.0)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_e4s:9.2::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS E4S (v.9.2)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_eus:9.4::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS EUS (v.9.4)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:rhel_eus:9.6::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS EUS (v.9.6)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:9::baseos\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux BaseOS (v. 9)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux_eus:10.0\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:10.1\", \"cpe:/o:redhat:enterprise_linux:10.2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:enterprise_linux:8::crb\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux CRB (v. 8)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_eus:9.4::crb\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat CodeReady Linux Builder EUS (v.9.4)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhel_eus:9.6::crb\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat CodeReady Linux Builder EUS (v.9.6)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:enterprise_linux:9::crb\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ai_inference_server:3.2::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat AI Inference Server 3.2\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ai_inference_server:3.3::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat AI Inference Server 3.3\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:enterprise_linux_ai:3.3::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AI 3.3\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:hummingbird:1\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Hardened Images\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhui:5::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Update Infrastructure 5\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:6\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 6\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:7\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 7\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:enterprise_linux_ai:3\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux AI (RHEL AI) 3\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 8\", \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-04-13T18:01:31.970Z\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2026-04-13T17:15:47.606Z\", \"value\": \"Made public.\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"RHSA-2026:13812: Middleware Containers for OpenShift\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:16699: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux BaseOS EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:10711: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19064: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19019: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:11077: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux BaseOS (v. 8)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:11062: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:10950: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19590: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4), Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:17619: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6), Red Hat Enterprise Linux BaseOS AUS (v.8.6), Red Hat Enterprise Linux BaseOS E4S (v.8.6), Red Hat Enterprise Linux BaseOS TUS (v.8.6)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19549: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8), Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:26187: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19571: Red Hat Enterprise Linux AppStream E4S (v.9.0), Red Hat Enterprise Linux BaseOS E4S (v.9.0)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19570: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:13692: Red Hat Enterprise Linux AppStream E4S (v.9.2)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:21682: Red Hat CodeReady Linux Builder EUS (v.9.4), Red Hat Enterprise Linux AppStream EUS (v.9.4), Red Hat Enterprise Linux BaseOS EUS (v.9.4)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:14653: Red Hat CodeReady Linux Builder EUS (v.9.4), Red Hat Enterprise Linux AppStream EUS (v.9.4)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:17525: Red Hat CodeReady Linux Builder EUS (v.9.4), Red Hat Enterprise Linux AppStream EUS (v.9.4)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19576: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:14652: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:14656: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:10949: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:10774: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:10745: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19216: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19175: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19177: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19176: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:25096: Red Hat AI Inference Server 3.2\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:30078: Red Hat AI Inference Server 3.3\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:30089: Red Hat AI Inference Server 3.3\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:30088: Red Hat AI Inference Server 3.3\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:30087: Red Hat AI Inference Server 3.3\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:10140: Red Hat Enterprise Linux AI 3.3\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:10141: Red Hat Enterprise Linux AI 3.3\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:8822: Red Hat Hardened Images\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:8824: Red Hat Hardened Images\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:10117: Red Hat Hardened Images\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:9228: Red Hat Hardened Images\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:11768: Red Hat Update Infrastructure 5\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:21275: Red Hat Update Infrastructure 5\"}], \"x_adpType\": \"supplier\", \"datePublic\": \"2026-04-13T17:15:47.606Z\", \"references\": [{\"url\": \"https://access.redhat.com/security/cve/CVE-2026-6100\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2457932\", \"name\": \"RHBZ#2457932\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6100.json\", \"tags\": [\"x_sadp-csaf-vex\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:13812\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:16699\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:10711\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19064\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19019\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:11077\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:11062\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:10950\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19590\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:17619\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19549\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:26187\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19571\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19570\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:13692\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:21682\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:14653\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:17525\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19576\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:14652\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:14656\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:10949\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:10774\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:10745\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19216\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19175\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19177\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19176\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:25096\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:30078\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:30089\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:30088\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:30087\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:10140\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:10141\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:8822\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:8824\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:10117\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:9228\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:11768\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:21275\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.\"}], \"x_generator\": {\"engine\": \"sadp-cli 1.0.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in Python\u0027s decompression modules, including `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile`. This vulnerability, a use-after-free, can occur if a program attempts to re-use a decompression object after a memory allocation error, especially when the system is experiencing high memory usage. Exploitation of this flaw could potentially allow an attacker to execute arbitrary code or access sensitive data. The vulnerability is only present if the program re-uses decompressor instances across multiple decompression calls even after a `MemoryError` is raised during decompression. Using the helper functions to one-shot decompress data such as `lzma.decompress()`, `bz2.decompress()`, `gzip.decompress()`, and `zlib.decompress()` are not affected as a new decompressor instance is used per call. If the decompressor instance is not re-used after an error condition, this usage is similarly not vulnerable.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-825\", \"description\": \"Expired Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\", \"shortName\": \"redhat-SADP\", \"dateUpdated\": \"2026-06-30T03:18:10.501Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-6100\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-13T19:21:03.412763Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-13T19:21:07.815Z\"}}], \"cna\": {\"title\": \"Use-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressure\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"Ryan Hileman\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Stan Ulbrych\"}, {\"lang\": \"en\", \"type\": \"coordinator\", \"value\": \"Seth Larson\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Stan Ulbrych\"}, {\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Ryan Hileman\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 9.1, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://github.com/python/cpython\", \"vendor\": \"Python Software Foundation\", \"product\": \"CPython\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"3.13.14\", \"versionType\": \"python\"}, {\"status\": \"affected\", \"version\": \"3.14.0a1\", \"lessThan\": \"3.14.5rc1\", \"versionType\": \"python\"}, {\"status\": \"affected\", \"version\": \"3.15.0a1\", \"lessThan\": \"3.15.0b1\", \"versionType\": \"python\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/python/cpython/pull/148396\", \"tags\": [\"patch\"]}, {\"url\": \"https://mail.python.org/archives/list/security-announce@python.org/thread/HTWB2Z6KT5QQX4RYEZAFININDHNOSIF3/\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://github.com/python/cpython/issues/148395\", \"tags\": [\"issue-tracking\"]}, {\"url\": \"https://github.com/python/cpython/commit/6a5f79c8d7bbf22b083b240910c7a8781a59437d\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/python/cpython/commit/8fc66aef6d7b3ae58f43f5c66f9366cc8cbbfcd2\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/python/cpython/commit/c3cf71c3366fe49acb776a639405c0eea6169c20\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/python/cpython/commit/47128e64f98c3a20271138a98c2922bea2a3ee0e\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/python/cpython/commit/e20c6c9667c99ecaab96e1a2b3767082841ffc8b\", \"tags\": [\"patch\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.6.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Use-after-free (UAF) was possible in the `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when a memory allocation fails with a `MemoryError` and the decompression instance is re-used. This scenario can be triggered if the process is under memory pressure. The fix cleans up the dangling pointer in this specific error condition.\\n\\nThe vulnerability is only present if the program re-uses decompressor instances across multiple decompression calls even after a `MemoryError` is raised during decompression. Using the helper functions to one-shot decompress data such as `lzma.decompress()`, `bz2.decompress()`, `gzip.decompress()`, and `zlib.decompress()` are not affected as a new decompressor instance is used per call. If the decompressor instance is not re-used after an error condition, this usage is similarly not vulnerable.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Use-after-free (UAF) was possible in the `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when a memory allocation fails with a `MemoryError` and the decompression instance is re-used. This scenario can be triggered if the process is under memory pressure. The fix cleans up the dangling pointer in this specific error condition.\u003cbr\u003e\u003cbr\u003eThe vulnerability is only present if the program re-uses decompressor instances across multiple decompression calls even after a `MemoryError` is raised during decompression. Using the helper functions to one-shot decompress data such as `lzma.decompress()`, `bz2.decompress()`, `gzip.decompress()`, and `zlib.decompress()` are not affected as a new decompressor instance is used per call. If the decompressor instance is not re-used after an error condition, this usage is similarly not vulnerable.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use after free\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-787\", \"description\": \"CWE-787 Out-of-bounds write\"}]}], \"providerMetadata\": {\"orgId\": \"28c92f92-d60d-412d-b760-e73465c3df22\", \"shortName\": \"PSF\", \"dateUpdated\": \"2026-06-10T18:58:01.371Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-6100\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-30T03:18:10.501Z\", \"dateReserved\": \"2026-04-10T21:13:45.428Z\", \"assignerOrgId\": \"28c92f92-d60d-412d-b760-e73465c3df22\", \"datePublished\": \"2026-04-13T17:15:47.606Z\", \"assignerShortName\": \"PSF\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…