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RHSA-2026:37577

Vulnerability from csaf_redhat - Published: 2026-07-10 05:14 - Updated: 2026-09-14 15:56
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs: dotnet8.0: * aspnetcore-runtime-8.0-8.0.28-1.1.hum1 (aarch64, x86_64) * aspnetcore-runtime-dbg-8.0-8.0.28-1.1.hum1 (aarch64, x86_64) * aspnetcore-targeting-pack-8.0-8.0.28-1.1.hum1 (aarch64, x86_64) * dotnet-apphost-pack-8.0-8.0.28-1.1.hum1 (aarch64, x86_64) * dotnet-hostfxr-8.0-8.0.28-1.1.hum1 (aarch64, x86_64) * dotnet-runtime-8.0-8.0.28-1.1.hum1 (aarch64, x86_64) * dotnet-runtime-dbg-8.0-8.0.28-1.1.hum1 (aarch64, x86_64) * dotnet-sdk-8.0-8.0.128-1.1.hum1 (aarch64, x86_64) * dotnet-sdk-8.0-source-built-artifacts-8.0.128-1.1.hum1 (aarch64, x86_64) * dotnet-sdk-dbg-8.0-8.0.128-1.1.hum1 (aarch64, x86_64) * dotnet-targeting-pack-8.0-8.0.28-1.1.hum1 (aarch64, x86_64) * dotnet-templates-8.0-8.0.128-1.1.hum1 (aarch64, x86_64) * dotnet8.0-8.0.128-1.1.hum1.src (src) Security Fix(es): dotnet8.0: * CVE-2026-59725 * CVE-2026-59869
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-39243

A flaw was found in decompress. An attacker can craft a malicious archive that, when extracted, allows for arbitrary hardlink creation. This vulnerability occurs because the x.linkname field from hardlink entries in the archive is processed without proper validation, enabling an attacker to create a hardlink to any file on the same filesystem. This could lead to sensitive file read disclosure or file corruption on the system.

6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@src —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
CVE-2026-39245

A flaw was found in the `decompress` component. An improper path containment check allows a local attacker to perform directory traversal. This vulnerability, when combined with unvalidated symlink creation, enables an attacker to write arbitrary files to directories outside the intended extraction target. This issue bypasses a previous fix for CVE-2020-12265.

6.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Fixed 3 products, the same list as for CVE-2026-39243
Threats
Impact Moderate
CVE-2026-59725

A flaw was found in Socket.IO, specifically within the Engine.IO protocol v4 polling transport. An unauthenticated attacker can exploit this vulnerability by sending invalid binary POST requests with a Content-Type of application/octet-stream. This improper handling of requests prevents the HTTP response from being properly closed, which can lead to the exhaustion of server-side connections and sockets. The primary consequence is a Denial of Service (DoS), making the affected service unavailable to legitimate users.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-772 - Missing Release of Resource after Effective Lifetime
Affected products
Fixed 3 products, the same list as for CVE-2026-39243
Threats
Impact Important
CVE-2026-59869

A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial of Service (DoS) for the affected system.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-606 - Unchecked Input for Loop Condition
Affected products
Fixed 3 products, the same list as for CVE-2026-39243
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:37577 self
https://access.redhat.com/security/cve/CVE-2026-59725 external
https://access.redhat.com/security/cve/CVE-2026-59869 external
https://access.redhat.com/security/updates/classi… external
https://images.redhat.com/ external
https://access.redhat.com/security/cve/CVE-2026-39243 external
https://access.redhat.com/security/cve/CVE-2026-39245 external
https://access.redhat.com/security/cve/CVE-2020-12265 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-39243 self
https://bugzilla.redhat.com/show_bug.cgi?id=2498833 external
https://www.cve.org/CVERecord?id=CVE-2026-39243 external
https://nvd.nist.gov/vuln/detail/CVE-2026-39243 external
https://github.com/kevva/decompress external
https://github.com/kevva/decompress/issues/113 external
https://www.npmjs.com/package/decompress external
https://access.redhat.com/security/cve/CVE-2026-39245 self
https://bugzilla.redhat.com/show_bug.cgi?id=2498814 external
https://www.cve.org/CVERecord?id=CVE-2026-39245 external
https://nvd.nist.gov/vuln/detail/CVE-2026-39245 external
https://github.com/kevva/decompress/issues/115 external
https://nvd.nist.gov/vuln/detail/CVE-2020-12265 external
https://access.redhat.com/security/cve/CVE-2026-59725 self
https://bugzilla.redhat.com/show_bug.cgi?id=2498118 external
https://www.cve.org/CVERecord?id=CVE-2026-59725 external
https://nvd.nist.gov/vuln/detail/CVE-2026-59725 external
https://github.com/socketio/socket.io/commit/fc11… external
https://github.com/socketio/socket.io/releases/ta… external
https://github.com/socketio/socket.io/security/ad… external
https://access.redhat.com/security/cve/CVE-2026-59869 self
https://bugzilla.redhat.com/show_bug.cgi?id=2498122 external
https://www.cve.org/CVERecord?id=CVE-2026-59869 external
https://nvd.nist.gov/vuln/detail/CVE-2026-59869 external
https://github.com/nodeca/js-yaml/commit/24f13e79… external
https://github.com/nodeca/js-yaml/commit/59423c6f… external
https://github.com/nodeca/js-yaml/releases/tag/3.15.0 external
https://github.com/nodeca/js-yaml/releases/tag/4.3.0 external
https://github.com/nodeca/js-yaml/security/adviso… external
To clipboard 

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      },
      "discovery_date": "2026-07-09T22:02:42.822765+00:00",
      "ids": [
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          "category": "description",
          "text": "A flaw was found in decompress. An attacker can craft a malicious archive that, when extracted, allows for arbitrary hardlink creation. This vulnerability occurs because the x.linkname field from hardlink entries in the archive is processed without proper validation, enabling an attacker to create a hardlink to any file on the same filesystem. This could lead to sensitive file read disclosure or file corruption on the system.",
          "title": "Vulnerability description"
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          "text": "decompress: Decompress: File disclosure and corruption via arbitrary hardlink creation",
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          "text": "This Moderate flaw in the `decompress` library allows an attacker to create arbitrary hardlinks during archive extraction. By crafting a malicious archive, an attacker could exploit this to disclose sensitive file contents or corrupt files on the same filesystem where the archive is extracted. This risk is present in Red Hat products that utilize the `decompress` library for archive handling.\n\nUpstream scores I:N, but Red Hat assigns I:L because a hardlink to an absolute path shares the target\u2019s inode, so writes through the extracted name can corrupt or overwrite the original file, not only disclose its contents.",
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      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-10T05:14:22+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:37577"
        },
        {
          "category": "workaround",
          "details": "To mitigate this issue, avoid extracting archives from untrusted or unknown sources. When processing archives from potentially untrusted origins, consider using a sandboxed environment to limit the impact of any malicious content.",
          "product_ids": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "decompress: Decompress: File disclosure and corruption via arbitrary hardlink creation"
    },
    {
      "cve": "CVE-2026-39245",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "discovery_date": "2026-07-09T22:01:41.172349+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2498814"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the `decompress` component. An improper path containment check allows a local attacker to perform directory traversal. This vulnerability, when combined with unvalidated symlink creation, enables an attacker to write arbitrary files to directories outside the intended extraction target. This issue bypasses a previous fix for CVE-2020-12265.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "decompress: decompress: path traversal via indexOf containment bypass allows arbitrary file write (bypass of CVE-2020-12265 fix)",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat\u0027s assessment aligns with the CVSSv3.1 base score of 6.2 (Moderate) published by CVE.org/CISA for this issue. The vulnerable safeMakeDir/indexOf path-containment check described in this CVE exists only in decompress 4.2.1, the final release that addressed the earlier CVE-2020-12265 path traversal issue. The decompress npm package is no longer maintained upstream and no 4.2.2 release was ever published, despite the CVE description referring to a fix in that version. Some Red Hat products bundle much older decompress releases (0.2.5, 3.0.0) that predate this code path entirely and are not affected by this specific issue.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:dotnet8-0-main@aarch64",
          "Red Hat Hardened Images:dotnet8-0-main@src",
          "Red Hat Hardened Images:dotnet8-0-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-39245"
        },
        {
          "category": "external",
          "summary": "RHBZ#2498814",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2498814"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-39245",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-39245"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-39245",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39245"
        },
        {
          "category": "external",
          "summary": "https://github.com/kevva/decompress",
          "url": "https://github.com/kevva/decompress"
        },
        {
          "category": "external",
          "summary": "https://github.com/kevva/decompress/issues/115",
          "url": "https://github.com/kevva/decompress/issues/115"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-12265",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12265"
        },
        {
          "category": "external",
          "summary": "https://www.npmjs.com/package/decompress",
          "url": "https://www.npmjs.com/package/decompress"
        }
      ],
      "release_date": "2026-07-09T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-10T05:14:22+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:37577"
        },
        {
          "category": "workaround",
          "details": "No upstream fix is available. The decompress package is unmaintained and no 4.2.2 release was ever published. Applications should avoid extracting untrusted archives with decompress 4.2.1, or migrate to a maintained fork such as @xhmikosr/decompress.",
          "product_ids": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "decompress: decompress: path traversal via indexOf containment bypass allows arbitrary file write (bypass of CVE-2020-12265 fix)"
    },
    {
      "cve": "CVE-2026-59725",
      "cwe": {
        "id": "CWE-772",
        "name": "Missing Release of Resource after Effective Lifetime"
      },
      "discovery_date": "2026-07-08T16:01:21.270461+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2498118"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Socket.IO, specifically within the Engine.IO protocol v4 polling transport. An unauthenticated attacker can exploit this vulnerability by sending invalid binary POST requests with a Content-Type of application/octet-stream. This improper handling of requests prevents the HTTP response from being properly closed, which can lead to the exhaustion of server-side connections and sockets. The primary consequence is a Denial of Service (DoS), making the affected service unavailable to legitimate users.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "socket.io: engine.io: Socket.IO: Denial of Service via invalid binary POST requests",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw has been rated as Important. An unauthenticated remote attacker can exploit a vulnerability in the Engine.IO protocol v4 polling transport of Socket.IO by sending malformed binary POST requests. This can lead to server-side connection exhaustion and a denial of service, impacting the availability of applications utilizing Socket.IO.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:dotnet8-0-main@aarch64",
          "Red Hat Hardened Images:dotnet8-0-main@src",
          "Red Hat Hardened Images:dotnet8-0-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-59725"
        },
        {
          "category": "external",
          "summary": "RHBZ#2498118",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2498118"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-59725",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-59725"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59725",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59725"
        },
        {
          "category": "external",
          "summary": "https://github.com/socketio/socket.io/commit/fc11285e14964c2132d122164bf130c355f60671",
          "url": "https://github.com/socketio/socket.io/commit/fc11285e14964c2132d122164bf130c355f60671"
        },
        {
          "category": "external",
          "summary": "https://github.com/socketio/socket.io/releases/tag/engine.io@6.6.7",
          "url": "https://github.com/socketio/socket.io/releases/tag/engine.io@6.6.7"
        },
        {
          "category": "external",
          "summary": "https://github.com/socketio/socket.io/security/advisories/GHSA-r635-g3xr-vw7x",
          "url": "https://github.com/socketio/socket.io/security/advisories/GHSA-r635-g3xr-vw7x"
        }
      ],
      "release_date": "2026-07-08T15:37:52.293000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-10T05:14:22+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:37577"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "socket.io: engine.io: Socket.IO: Denial of Service via invalid binary POST requests"
    },
    {
      "cve": "CVE-2026-59869",
      "cwe": {
        "id": "CWE-606",
        "name": "Unchecked Input for Loop Condition"
      },
      "discovery_date": "2026-07-08T16:01:38.408322+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2498122"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial of Service (DoS) for the affected system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "js-yaml: js-yaml: Denial of Service via crafted YAML documents",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated as Important. Red Hat products utilizing `js-yaml` to process untrusted YAML input are susceptible to a denial of service, as a remote attacker can provide a crafted document that consumes excessive CPU resources. This is considered Important due to the potential for service disruption without requiring authentication or complex attack vectors.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:dotnet8-0-main@aarch64",
          "Red Hat Hardened Images:dotnet8-0-main@src",
          "Red Hat Hardened Images:dotnet8-0-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-59869"
        },
        {
          "category": "external",
          "summary": "RHBZ#2498122",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2498122"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-59869",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-59869"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59869",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59869"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7",
          "url": "https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4",
          "url": "https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodeca/js-yaml/releases/tag/3.15.0",
          "url": "https://github.com/nodeca/js-yaml/releases/tag/3.15.0"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodeca/js-yaml/releases/tag/4.3.0",
          "url": "https://github.com/nodeca/js-yaml/releases/tag/4.3.0"
        },
        {
          "category": "external",
          "summary": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m",
          "url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m"
        }
      ],
      "release_date": "2026-07-08T15:15:54.675000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-10T05:14:22+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:37577"
        },
        {
          "category": "workaround",
          "details": "To reduce exposure, restrict the processing of untrusted YAML documents by applications that rely on `js-yaml`. Implement robust input validation and sanitization for all YAML data originating from external or untrusted sources. Consider limiting network access to services that parse YAML content to trusted networks or clients through appropriate firewall configurations.",
          "product_ids": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:dotnet8-0-main@aarch64",
            "Red Hat Hardened Images:dotnet8-0-main@src",
            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "js-yaml: js-yaml: Denial of Service via crafted YAML documents"
    }
  ]
}



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Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.