Vulnerability-Lookup

RHSA-2026:58482

Vulnerability from csaf_redhat - Published: 2026-08-22 02:00 - Updated: 2026-09-24 06:12

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Moderate

Notes

Topic: An update for Red Hat Hardened Images RPMs is now available.

Details: This update includes the following RPMs: poppler: * poppler-26.08.0-1.hum1 (aarch64, x86_64) * poppler-cpp-26.08.0-1.hum1 (aarch64, x86_64) * poppler-cpp-devel-26.08.0-1.hum1 (aarch64, x86_64) * poppler-devel-26.08.0-1.hum1 (aarch64, x86_64) * poppler-glib-26.08.0-1.hum1 (aarch64, x86_64) * poppler-glib-devel-26.08.0-1.hum1 (aarch64, x86_64) * poppler-glib-doc-26.08.0-1.hum1 (noarch) * poppler-qt6-26.08.0-1.hum1 (aarch64, x86_64) * poppler-qt6-devel-26.08.0-1.hum1 (aarch64, x86_64) * poppler-utils-26.08.0-1.hum1 (aarch64, x86_64) * poppler-26.08.0-1.hum1.src (src)

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-2026-93312

A flaw was found in Freedesktop Poppler. A remote attacker could exploit a null pointer dereference vulnerability in the `JBIG2Stream::rewind` function. This could lead to a denial of service (DoS), making the application unavailable to legitimate users.

4.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CWE-476 - NULL Pointer Dereference

Affected products

Fixed 21 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:poppler-0:26.08.0-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-0:26.08.0-1.hum1@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-0:26.08.0-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-cpp-0:26.08.0-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-cpp-0:26.08.0-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-cpp-devel-0:26.08.0-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-cpp-devel-0:26.08.0-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-devel-0:26.08.0-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-devel-0:26.08.0-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-0:26.08.0-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-0:26.08.0-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-devel-0:26.08.0-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-devel-0:26.08.0-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-doc-0:26.08.0-1.hum1@noarch@public-hummingbird-aarch64-rpms	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-doc-0:26.08.0-1.hum1@noarch@public-hummingbird-x86_64-rpms	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-qt6-0:26.08.0-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-qt6-0:26.08.0-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-qt6-devel-0:26.08.0-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-qt6-devel-0:26.08.0-1.hum1@x86_64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-utils-0:26.08.0-1.hum1@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:poppler-utils-0:26.08.0-1.hum1@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Moderate

CVE-2026-93314

A flaw was found in Poppler. A remote attacker could exploit an integer overflow vulnerability by manipulating the `segCnt` argument within the `FoFiTrueType::mapCodeToGID` function. This could potentially lead to information disclosure, data corruption, or denial of service.

6.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CWE-190 - Integer Overflow or Wraparound

Affected products

Fixed 21 products, the same list as for CVE-2026-93312

Threats

Impact Moderate

References

30 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:58482	self
https://images.redhat.com/	external
https://access.redhat.com/security/cve/CVE-2026-93314	external
https://access.redhat.com/security/updates/classi…	external
https://access.redhat.com/security/cve/CVE-2026-93312	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-93312	self
https://bugzilla.redhat.com/show_bug.cgi?id=2537889	external
https://www.cve.org/CVERecord?id=CVE-2026-93312	external
https://nvd.nist.gov/vuln/detail/CVE-2026-93312	external
https://github.com/r1ck9-2q/cve_summit/blob/main/…	external
https://gitlab.freedesktop.org/poppler/poppler/-/…	external
https://gitlab.freedesktop.org/poppler/poppler/-/…	external
https://gitlab.freedesktop.org/poppler/poppler/-/…	external
https://vuldb.com/cve/CVE-2026-93312	external
https://vuldb.com/submit/942345	external
https://vuldb.com/vuln/406610	external
https://vuldb.com/vuln/406610/cti	external
https://access.redhat.com/security/cve/CVE-2026-93314	self
https://bugzilla.redhat.com/show_bug.cgi?id=2538151	external
https://www.cve.org/CVERecord?id=CVE-2026-93314	external
https://nvd.nist.gov/vuln/detail/CVE-2026-93314	external
https://github.com/r1ck9-2q/cve_summit/blob/main/…	external
https://gitlab.freedesktop.org/poppler/poppler/-/…	external
https://gitlab.freedesktop.org/poppler/poppler/-/…	external
https://gitlab.freedesktop.org/poppler/poppler/-/…	external
https://vuldb.com/cve/CVE-2026-93314	external
https://vuldb.com/submit/942347	external
https://vuldb.com/vuln/406613	external
https://vuldb.com/vuln/406613/cti	external

JSON

To clipboard

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          "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.",
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            "attackVector": "NETWORK",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
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      ],
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          "category": "impact",
          "details": "Moderate"
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      ],
      "title": "poppler: Freedesktop Poppler: Denial of Service via null pointer dereference in JBIG2Stream::rewind function"
    },
    {
      "cve": "CVE-2026-93314",
      "cwe": {
        "id": "CWE-190",
        "name": "Integer Overflow or Wraparound"
      },
      "discovery_date": "2026-09-22T17:17:09.460572+00:00",
      "ids": [
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          "system_name": "Red Hat Bugzilla ID",
          "text": "2538151"
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          "category": "description",
          "text": "A flaw was found in Poppler. A remote attacker could exploit an integer overflow vulnerability by manipulating the `segCnt` argument within the `FoFiTrueType::mapCodeToGID` function. This could potentially lead to information disclosure, data corruption, or denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "poppler: Poppler: Remote integer overflow vulnerability",
          "title": "Vulnerability summary"
        },
        {
          "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": {
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-93314"
        },
        {
          "category": "external",
          "summary": "RHBZ#2538151",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2538151"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-93314",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-93314"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-93314",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93314"
        },
        {
          "category": "external",
          "summary": "https://github.com/r1ck9-2q/cve_summit/blob/main/Signed-integer-overflow-in-FoFiTrueType-mapCodeToGID-FoFiTrueType.cc-608.md",
          "url": "https://github.com/r1ck9-2q/cve_summit/blob/main/Signed-integer-overflow-in-FoFiTrueType-mapCodeToGID-FoFiTrueType.cc-608.md"
        },
        {
          "category": "external",
          "summary": "https://gitlab.freedesktop.org/poppler/poppler/-/commit/ed2a5538cf0a8d3ff908191eda9b73f91a5f952a?merge_request_iid=2315",
          "url": "https://gitlab.freedesktop.org/poppler/poppler/-/commit/ed2a5538cf0a8d3ff908191eda9b73f91a5f952a?merge_request_iid=2315"
        },
        {
          "category": "external",
          "summary": "https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2315",
          "url": "https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2315"
        },
        {
          "category": "external",
          "summary": "https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1761",
          "url": "https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1761"
        },
        {
          "category": "external",
          "summary": "https://vuldb.com/cve/CVE-2026-93314",
          "url": "https://vuldb.com/cve/CVE-2026-93314"
        },
        {
          "category": "external",
          "summary": "https://vuldb.com/submit/942347",
          "url": "https://vuldb.com/submit/942347"
        },
        {
          "category": "external",
          "summary": "https://vuldb.com/vuln/406613",
          "url": "https://vuldb.com/vuln/406613"
        },
        {
          "category": "external",
          "summary": "https://vuldb.com/vuln/406613/cti",
          "url": "https://vuldb.com/vuln/406613/cti"
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      "release_date": "2026-09-18T01:30:10.127000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-22T02:00:59+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/",
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          "url": "https://access.redhat.com/errata/RHSA-2026:58482"
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          "category": "workaround",
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            "confidentialityImpact": "LOW",
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            "Red Hat Hardened Images:poppler-glib-0:26.08.0-1.hum1@x86_64",
            "Red Hat Hardened Images:poppler-glib-devel-0:26.08.0-1.hum1@aarch64",
            "Red Hat Hardened Images:poppler-glib-devel-0:26.08.0-1.hum1@x86_64",
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            "Red Hat Hardened Images:poppler-glib-doc-0:26.08.0-1.hum1@noarch@public-hummingbird-x86_64-rpms",
            "Red Hat Hardened Images:poppler-qt6-0:26.08.0-1.hum1@aarch64",
            "Red Hat Hardened Images:poppler-qt6-0:26.08.0-1.hum1@x86_64",
            "Red Hat Hardened Images:poppler-qt6-devel-0:26.08.0-1.hum1@aarch64",
            "Red Hat Hardened Images:poppler-qt6-devel-0:26.08.0-1.hum1@x86_64",
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            "Red Hat Hardened Images:poppler-utils-0:26.08.0-1.hum1@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "poppler: Poppler: Remote integer overflow vulnerability"
    }
  ]
}

CVE-2026-93312 (GCVE-0-2026-93312)

Vulnerability from cvelistv5 – Published: 2026-09-18 00:45 – Updated: 2026-09-22 18:23 X_Open Source

Title

Freedesktop Poppler JBIG2Stream.cc rewind null pointer dereference

Summary

A flaw has been found in Freedesktop Poppler 26.07.0. Impacted is the function JBIG2Stream::rewind of the file poppler/JBIG2Stream.cc. This manipulation causes null pointer dereference. It is possible to initiate the attack remotely. The exploit has been published and may be used. Upgrading to version 26.08.0 is recommended to address this issue. Patch name: 5e49250f13b0390edeb3f90eb4c02c9941f97067. Upgrading the affected component is advised.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

4.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-22 18:22 UTC

CWE

CWE-476 - NULL Pointer Dereference
CWE-404 - Denial of Service

Assigner

VulDB mitre root

References

8 references

URL	Tags
https://vuldb.com/vuln/406610	vdb-entrytechnical-description
https://vuldb.com/vuln/406610/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-93312	third-party-advisory
https://vuldb.com/submit/942345	third-party-advisory
https://gitlab.freedesktop.org/poppler/poppler/-/…	related
https://gitlab.freedesktop.org/poppler/poppler/-/…	patch
https://github.com/r1ck9-2q/cve_summit/blob/main/…	exploit
https://gitlab.freedesktop.org/poppler/poppler/-/…	broken-linkpatch

Impacted products

1 product

Vendor	Product	Version
Freedesktop	Poppler	Affected: 26.07.0 Unaffected: 26.08.0 cpe:2.3:a:freedesktop:poppler::::::::

Credits

r1ck99 (VulDB User)

Show details on NVD website

JSON

To clipboard

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CVE-2026-93314 (GCVE-0-2026-93314)

Vulnerability from cvelistv5 – Published: 2026-09-18 01:30 – Updated: 2026-09-22 02:01 X_Open Source

Title

Freedesktop Poppler FoFiTrueType.cc mapCodeToGID integer overflow

Summary

A vulnerability was determined in Freedesktop Poppler 26.07.0. This affects the function FoFiTrueType::mapCodeToGID of the file fofi/FoFiTrueType.cc. Executing a manipulation of the argument segCnt can lead to integer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called ed2a5538cf0a8d3ff908191eda9b73f91a5f952a. It is advisable to implement a patch to correct this issue.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

6.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

6.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-22 02:01 UTC

CWE

CWE-190 - Integer Overflow
CWE-189 - Numeric Error

Assigner

VulDB mitre root

References

8 references

URL	Tags
https://vuldb.com/vuln/406613	vdb-entrytechnical-description
https://vuldb.com/vuln/406613/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-93314	third-party-advisory
https://vuldb.com/submit/942347	third-party-advisory
https://gitlab.freedesktop.org/poppler/poppler/-/…	related
https://gitlab.freedesktop.org/poppler/poppler/-/…	patch
https://github.com/r1ck9-2q/cve_summit/blob/main/…	exploit
https://gitlab.freedesktop.org/poppler/poppler/-/…	patch

Impacted products

1 product

Vendor	Product	Version
Freedesktop	Poppler	Affected: 26.07.0 cpe:2.3:a:freedesktop:poppler::::::::

Credits

r1ck99 (VulDB User)

Show details on NVD website

JSON

To clipboard

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2026:58482

CVE-2026-93312 (GCVE-0-2026-93312)

CVE-2026-93314 (GCVE-0-2026-93314)

Tags

Sightings

Nomenclature

Related by attack behaviour