RHSA-2026:80172

Vulnerability from csaf_redhat - Published: 2026-10-09 18:31 - Updated: 2026-10-09 23:27
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security 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-26.08.0-1.3.hum1 (aarch64, x86_64) * poppler-cpp-26.08.0-1.3.hum1 (aarch64, x86_64) * poppler-cpp-devel-26.08.0-1.3.hum1 (aarch64, x86_64) * poppler-devel-26.08.0-1.3.hum1 (aarch64, x86_64) * poppler-glib-26.08.0-1.3.hum1 (aarch64, x86_64) * poppler-glib-devel-26.08.0-1.3.hum1 (aarch64, x86_64) * poppler-glib-doc-26.08.0-1.3.hum1 (noarch) * poppler-qt6-26.08.0-1.3.hum1 (aarch64, x86_64) * poppler-qt6-devel-26.08.0-1.3.hum1 (aarch64, x86_64) * poppler-utils-26.08.0-1.3.hum1 (aarch64, x86_64) * poppler-26.08.0-1.3.hum1.src (src) Security Fix(es): poppler: * CVE-2026-107705
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.

A flaw was found in Poppler. A stack-based buffer overflow vulnerability exists in the decryption routine when processing encrypted PDF documents. By providing an overly long password during document decryption, an attacker can overwrite memory buffers. This issue primarily leads to a Denial of Service (DoS) through application crashes, or potential memory corruption.

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:poppler-0:26.08.0-1.3.hum1@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-0:26.08.0-1.3.hum1@src —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-0:26.08.0-1.3.hum1@x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-cpp-0:26.08.0-1.3.hum1@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-cpp-0:26.08.0-1.3.hum1@x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-cpp-devel-0:26.08.0-1.3.hum1@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-cpp-devel-0:26.08.0-1.3.hum1@x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-devel-0:26.08.0-1.3.hum1@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-devel-0:26.08.0-1.3.hum1@x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-0:26.08.0-1.3.hum1@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-0:26.08.0-1.3.hum1@x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-devel-0:26.08.0-1.3.hum1@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-devel-0:26.08.0-1.3.hum1@x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-doc-0:26.08.0-1.3.hum1@noarch@public-hummingbird-aarch64-rpms —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-doc-0:26.08.0-1.3.hum1@noarch@public-hummingbird-s390x-rpms —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-glib-doc-0:26.08.0-1.3.hum1@noarch@public-hummingbird-x86_64-rpms —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-qt6-0:26.08.0-1.3.hum1@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-qt6-0:26.08.0-1.3.hum1@x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-qt6-devel-0:26.08.0-1.3.hum1@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-qt6-devel-0:26.08.0-1.3.hum1@x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-utils-0:26.08.0-1.3.hum1@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:poppler-utils-0:26.08.0-1.3.hum1@x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Moderate

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        "text": "This update includes the following RPMs:\n\npoppler:\n  * poppler-26.08.0-1.3.hum1 (aarch64, x86_64)\n  * poppler-cpp-26.08.0-1.3.hum1 (aarch64, x86_64)\n  * poppler-cpp-devel-26.08.0-1.3.hum1 (aarch64, x86_64)\n  * poppler-devel-26.08.0-1.3.hum1 (aarch64, x86_64)\n  * poppler-glib-26.08.0-1.3.hum1 (aarch64, x86_64)\n  * poppler-glib-devel-26.08.0-1.3.hum1 (aarch64, x86_64)\n  * poppler-glib-doc-26.08.0-1.3.hum1 (noarch)\n  * poppler-qt6-26.08.0-1.3.hum1 (aarch64, x86_64)\n  * poppler-qt6-devel-26.08.0-1.3.hum1 (aarch64, x86_64)\n  * poppler-utils-26.08.0-1.3.hum1 (aarch64, x86_64)\n  * poppler-26.08.0-1.3.hum1.src (src)\n\nSecurity Fix(es):\n\npoppler:\n  * CVE-2026-107705",
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          "text": "This vulnerability is rated as Moderate severity because successful exploitation requires user interaction to open an untrusted, password-protected PDF file while supplying an excessively long password. Although stack memory is overwritten during hash computation, default toolchain hardening on Red Hat Enterprise Linux restricts the impact primarily to client application crashes and denial of service. Furthermore, automated server environments rarely process attacker-supplied interactive passwords for encrypted documents.",
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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.",
          "title": "CVSS score applicability"
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            "Red Hat Hardened Images:poppler-qt6-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-qt6-0:26.08.0-1.3.hum1@x86_64",
            "Red Hat Hardened Images:poppler-qt6-devel-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-qt6-devel-0:26.08.0-1.3.hum1@x86_64",
            "Red Hat Hardened Images:poppler-utils-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-utils-0:26.08.0-1.3.hum1@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:poppler-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-0:26.08.0-1.3.hum1@src",
            "Red Hat Hardened Images:poppler-0:26.08.0-1.3.hum1@x86_64",
            "Red Hat Hardened Images:poppler-cpp-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-cpp-0:26.08.0-1.3.hum1@x86_64",
            "Red Hat Hardened Images:poppler-cpp-devel-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-cpp-devel-0:26.08.0-1.3.hum1@x86_64",
            "Red Hat Hardened Images:poppler-devel-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-devel-0:26.08.0-1.3.hum1@x86_64",
            "Red Hat Hardened Images:poppler-glib-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-glib-0:26.08.0-1.3.hum1@x86_64",
            "Red Hat Hardened Images:poppler-glib-devel-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-glib-devel-0:26.08.0-1.3.hum1@x86_64",
            "Red Hat Hardened Images:poppler-glib-doc-0:26.08.0-1.3.hum1@noarch@public-hummingbird-aarch64-rpms",
            "Red Hat Hardened Images:poppler-glib-doc-0:26.08.0-1.3.hum1@noarch@public-hummingbird-s390x-rpms",
            "Red Hat Hardened Images:poppler-glib-doc-0:26.08.0-1.3.hum1@noarch@public-hummingbird-x86_64-rpms",
            "Red Hat Hardened Images:poppler-qt6-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-qt6-0:26.08.0-1.3.hum1@x86_64",
            "Red Hat Hardened Images:poppler-qt6-devel-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-qt6-devel-0:26.08.0-1.3.hum1@x86_64",
            "Red Hat Hardened Images:poppler-utils-0:26.08.0-1.3.hum1@aarch64",
            "Red Hat Hardened Images:poppler-utils-0:26.08.0-1.3.hum1@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "poppler: poppler: Denial of Service via stack-based buffer overflow in PDF decryption"
    }
  ]
}



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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.

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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.


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