CVE-2026-107705 (GCVE-0-2026-107705)

Vulnerability from cvelistv5 – Published: 2026-10-08 19:51 – Updated: 2026-10-08 19:51
VLAI
Title
Poppler 0.42.0 through 26.10.0 Stack Buffer Overflow via Decrypt::revision6Hash()
Summary
Poppler 0.42.0 through 26.10.0 contains a stack-based buffer overflow in Decrypt::revision6Hash() that allows attackers controlling the password to overwrite stack memory when opening AESV3/R6 encrypted PDFs. Attackers can supply a password longer than 127 bytes through applications using the libpoppler, libpoppler-glib or C++ API to overflow the K1 and E buffers, crashing the process or corrupting memory.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5285 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
freedesktop poppler Affected: 0.42.0 , ≤ 26.10.0 (semver)
    cpe:2.3:a:freedesktop:poppler:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-05 00:00
Credits
Aziz Elbelaychy (Ostorlab)
Show details on NVD website
To clipboard 

{
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        },
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      ],
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-107705",
    "datePublished": "2026-10-08T19:51:12.884Z",
    "dateReserved": "2026-10-08T16:52:24.550Z",
    "dateUpdated": "2026-10-08T19:51:12.884Z",
    "state": "PUBLISHED"
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          }
        ],
        "id": "CVE-2026-107705",
        "lastModified": "2026-10-08T21:35:53.890",
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                "Recovery": "NOT_DEFINED",
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                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
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                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
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                "valueDensity": "NOT_DEFINED",
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      "cve": "CVE-2026-107705",
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      "product_status:known_affected": "34",
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      "source": "Red Hat CSAF VEX",
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      "title": "poppler: poppler: Denial of Service via stack-based buffer overflow in PDF decryption",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-107705.json",
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  }
}



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Nomenclature

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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