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CVE-2026-27821

CVE-2026-27821 · GPAC NHML Demuxer (dmx_nhml.c) Vulnerable to Stack Buffer Overflow

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

GPAC is an open-source multimedia framework. In versions up to and including 26.02.0, a stack buffer overflow occurs during NHML file parsing in `src/filters/dmx_nhml.c`. The value of the xmlHeaderEnd XML attribute is copied from att->value into szXmlHeaderEnd[1000] using strcpy() without any length validation. If the input exceeds 1000 bytes, it overwrites beyond the stack buffer boundary. Commit 9bd7137fded2db40de61a2cf3045812c8741ec52 patches the issue.

CVSS 7.7 · High · EPSS 0.3%

Published
Updated

Stack: system

Affected products and versions

  • gpac

    Versions
    • <= 26.02.0: Affected

    No fix published

  • gpac Debian:11

    Versions
    • 1.0.1+dfsg1-4
    • 1.0.1+dfsg1-4+deb11u1
    • 1.0.1+dfsg1-4+deb11u2
    • 1.0.1+dfsg1-4+deb11u3
    • 1.0.1+dfsg1-5
    • 2.0.0+dfsg1-1
    • 2.0.0+dfsg1-2
    • 2.0.0+dfsg1-4
    • 2.2.1+dfsg1-1
    • 2.2.1+dfsg1-2
    • 2.2.1+dfsg1-3
    • 2.2.1+dfsg1-3.1
    • 2.2.1+dfsg1-3.1~exp1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gpac Ubuntu:Pro:14.04:LTS

    Versions
    • 0.5.0+svn4288~dfsg1-1ubuntu1
    • 0.5.0+svn4288~dfsg1-4
    • 0.5.0+svn4288~dfsg1-4ubuntu1
    • 0.5.0+svn4288~dfsg1-4ubuntu1+esm1
    • 0.5.0+svn4288~dfsg1-4ubuntu1+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gpac Ubuntu:Pro:16.04:LTS

    Versions
    • 0.5.2-426-gc5ad4e4+dfsg5-1build1
    • 0.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1
    • 0.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gpac Ubuntu:Pro:18.04:LTS

    Versions
    • 0.5.2-426-gc5ad4e4+dfsg5-3
    • 0.5.2-426-gc5ad4e4+dfsg5-3ubuntu0.1
    • 0.5.2-426-gc5ad4e4+dfsg5-3ubuntu0.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gpac Ubuntu:Pro:20.04:LTS

    Versions
    • 0.5.2-426-gc5ad4e4+dfsg5-4ubuntu1
    • 0.5.2-426-gc5ad4e4+dfsg5-5
    • 0.5.2-426-gc5ad4e4+dfsg5-5ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gpac Ubuntu:Pro:22.04:LTS

    Versions
    • 1.0.1+dfsg1-4
    • 1.0.1+dfsg1-5
    • 2.0.0+dfsg1-2
    • 2.0.0+dfsg1-2ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gpac Ubuntu:Pro:24.04:LTS

    Versions
    • 2.2.1+dfsg1-3
    • 2.2.1+dfsg1-3.1
    • 2.2.1+dfsg1-3.1build1
    • 2.2.1+dfsg1-3.1build2
    • 2.2.1+dfsg1-3.1ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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