p PatchFirst

CVE-2026-100310

CVE-2026-100310 · GNU libextractor before 1.16 Privilege Escalation via LIBEXTRACTOR_PREFIX

This page contains facts from public vulnerability sources. Check the original advisory before updating.

GNU libextractor before 1.16 loads plugins from an untrusted search path specified by the LIBEXTRACTOR_PREFIX environment variable without proper privilege checks. A local attacker can exploit this by setting LIBEXTRACTOR_PREFIX to a directory containing a malicious plugin that executes arbitrary code with elevated privileges when loaded by a setuid or setgid program.

CVSS 7.3 · High · EPSS 0.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • libextractor

    Versions
    • ≥ 0, < 1.16: Affected (custom)

    Update to 1.16

  • libextractor Debian:12

    Versions
    • 1:1.11-7
    • 1:1.11-8
    • 1:1.13-1
    • 1:1.13-10
    • 1:1.13-2
    • 1:1.13-3
    • 1:1.13-4
    • 1:1.13-4+loong64
    • 1:1.13-5
    • 1:1.13-6
    • 1:1.13-7
    • 1:1.13-8
    • 1:1.13-9
    • 1:1.17-1
    • 1:1.19-1
    • 1:1.19-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libextractor Debian:13

    Versions
    • 1:1.13-10
    • 1:1.13-8
    • 1:1.13-9
    • 1:1.17-1
    • 1:1.19-1
    • 1:1.19-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libextractor Debian:14

    Versions
    • 1:1.13-10
    • 1:1.13-8
    • 1:1.13-9
    Affected ranges
    • ECOSYSTEM: < 1:1.17-1

    Update to 1:1.17-1

  • libextractor Ubuntu:Pro:14.04:LTS

    Versions
    • 1:1.1-1ubuntu1
    • 1:1.2-1ubuntu1
    • 1:1.3-1
    • 1:1.3-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libextractor Ubuntu:16.04:LTS

    Versions
    • 1:1.3-2build1
    • 1:1.3-2ubuntu1
    • 1:1.3-3
    • 1:1.3-4+deb9u3build0.16.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libextractor Ubuntu:18.04:LTS

    Versions
    • 1:1.3-4build3
    • 1:1.6-1
    • 1:1.6-1build1
    • 1:1.6-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libextractor Ubuntu:20.04:LTS

    Versions
    • 1:1.9-2
    • 1:1.9-2ubuntu1
    • 1:1.9-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libextractor Ubuntu:22.04:LTS

    Versions
    • 1:1.11-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libextractor Ubuntu:24.04:LTS

    Versions
    • 1:1.11-8
    • 1:1.13-3
    • 1:1.13-3build2
    • 1:1.13-3build3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libextractor Ubuntu:26.10

    Versions
    • 1:1.13-9
    • 1:1.13-10
    • 1:1.19-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • libextractor Ubuntu:26.04:LTS

    Versions
    • 1:1.13-8build1
    • 1:1.13-9
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

Check your server →