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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-27821

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 8.3%
CVSS Severity
CVSS v3 Score 7.8
Products affected by CVE-2026-27821
  • Gpac » Gpac » Version: N/A
    cpe:2.3:a:gpac:gpac:-
  • Gpac » Gpac » Version: 0.5.2
    cpe:2.3:a:gpac:gpac:0.5.2
  • Gpac » Gpac » Version: 0.6.0
    cpe:2.3:a:gpac:gpac:0.6.0
  • Gpac » Gpac » Version: 0.6.1
    cpe:2.3:a:gpac:gpac:0.6.1
  • Gpac » Gpac » Version: 0.7.0
    cpe:2.3:a:gpac:gpac:0.7.0
  • Gpac » Gpac » Version: 0.7.1
    cpe:2.3:a:gpac:gpac:0.7.1
  • Gpac » Gpac » Version: 0.8.0
    cpe:2.3:a:gpac:gpac:0.8.0
  • Gpac » Gpac » Version: 0.9.0
    cpe:2.3:a:gpac:gpac:0.9.0
  • Gpac » Gpac » Version: 0.9.0-development-20191109
    cpe:2.3:a:gpac:gpac:0.9.0-development-20191109
  • Gpac » Gpac » Version: 1.0
    cpe:2.3:a:gpac:gpac:1.0
  • Gpac » Gpac » Version: 1.0.1
    cpe:2.3:a:gpac:gpac:1.0.1
  • Gpac » Gpac » Version: 1.1.0
    cpe:2.3:a:gpac:gpac:1.1.0
  • Gpac » Gpac » Version: 1.1.0-dev-rev1663-g881c6a94a-master
    cpe:2.3:a:gpac:gpac:1.1.0-dev-rev1663-g881c6a94a-master
  • Gpac » Gpac » Version: 1.1.0-dev-rev1727-g8be34973d-master
    cpe:2.3:a:gpac:gpac:1.1.0-dev-rev1727-g8be34973d-master
  • Gpac » Gpac » Version: 1.1.0-dev-rev1759-geb2d1e6dd
    cpe:2.3:a:gpac:gpac:1.1.0-dev-rev1759-geb2d1e6dd
  • Gpac » Gpac » Version: 2.0
    cpe:2.3:a:gpac:gpac:2.0
  • Gpac » Gpac » Version: 2.0.0
    cpe:2.3:a:gpac:gpac:2.0.0
  • Gpac » Gpac » Version: 2.1
    cpe:2.3:a:gpac:gpac:2.1
  • Gpac » Gpac » Version: 2.1-dev-rev368-gfd054169b-master
    cpe:2.3:a:gpac:gpac:2.1-dev-rev368-gfd054169b-master
  • Gpac » Gpac » Version: 2.1-dev-rev428-gcb8ae46c8-master
    cpe:2.3:a:gpac:gpac:2.1-dev-rev428-gcb8ae46c8-master
  • Gpac » Gpac » Version: 2.1-dev-rev478-g696e6f868-master
    cpe:2.3:a:gpac:gpac:2.1-dev-rev478-g696e6f868-master
  • Gpac » Gpac » Version: 2.1-dev-rev490-g68064e101-master
    cpe:2.3:a:gpac:gpac:2.1-dev-rev490-g68064e101-master
  • Gpac » Gpac » Version: 2.1-dev-rev505-gb9577e6ad-master
    cpe:2.3:a:gpac:gpac:2.1-dev-rev505-gb9577e6ad-master
  • Gpac » Gpac » Version: 2.1-dev-rev574-g9d5bb184b
    cpe:2.3:a:gpac:gpac:2.1-dev-rev574-g9d5bb184b
  • Gpac » Gpac » Version: 2.1-dev-rev593-g007bf61a0
    cpe:2.3:a:gpac:gpac:2.1-dev-rev593-g007bf61a0
  • Gpac » Gpac » Version: 2.1-dev-rev617-g85ce76efd
    cpe:2.3:a:gpac:gpac:2.1-dev-rev617-g85ce76efd
  • Gpac » Gpac » Version: 2.1-dev-rev644-g5c4df2a67
    cpe:2.3:a:gpac:gpac:2.1-dev-rev644-g5c4df2a67
  • Gpac » Gpac » Version: 2.1-dev-rev649-ga8f438d20
    cpe:2.3:a:gpac:gpac:2.1-dev-rev649-ga8f438d20
  • Gpac » Gpac » Version: 2.1-dev-rev87-g053aae8-master
    cpe:2.3:a:gpac:gpac:2.1-dev-rev87-g053aae8-master
  • Gpac » Gpac » Version: 2.2-rev0-gab012bbfb-master
    cpe:2.3:a:gpac:gpac:2.2-rev0-gab012bbfb-master
  • Gpac » Gpac » Version: 2.2.0
    cpe:2.3:a:gpac:gpac:2.2.0
  • Gpac » Gpac » Version: 2.2.1
    cpe:2.3:a:gpac:gpac:2.2.1
  • Gpac » Gpac » Version: 2.3
    cpe:2.3:a:gpac:gpac:2.3
  • Gpac » Gpac » Version: 2.3-dev-rev1-g4669ba229-master
    cpe:2.3:a:gpac:gpac:2.3-dev-rev1-g4669ba229-master
  • Gpac » Gpac » Version: 2.3-dev-rev35-gbbca86917-master
    cpe:2.3:a:gpac:gpac:2.3-dev-rev35-gbbca86917-master
  • Gpac » Gpac » Version: 2.3-dev-rev381-g817a848f6-master
    cpe:2.3:a:gpac:gpac:2.3-dev-rev381-g817a848f6-master
  • Gpac » Gpac » Version: 2.3-dev-rev40-g3602a5ded
    cpe:2.3:a:gpac:gpac:2.3-dev-rev40-g3602a5ded
  • Gpac » Gpac » Version: 2.3-dev-rev566-g50c2ab06f-master
    cpe:2.3:a:gpac:gpac:2.3-dev-rev566-g50c2ab06f-master
  • Gpac » Gpac » Version: 2.3-dev-rev573-g201320819-master
    cpe:2.3:a:gpac:gpac:2.3-dev-rev573-g201320819-master
  • Gpac » Gpac » Version: 2.3-dev-rev602-ged8424300-master
    cpe:2.3:a:gpac:gpac:2.3-dev-rev602-ged8424300-master
  • Gpac » Gpac » Version: 2.3-dev-rev605-gfc9e29089-master
    cpe:2.3:a:gpac:gpac:2.3-dev-rev605-gfc9e29089-master
  • Gpac » Gpac » Version: 2.3-dev-rev617-g671976fcc-master
    cpe:2.3:a:gpac:gpac:2.3-dev-rev617-g671976fcc-master
  • Gpac » Gpac » Version: 2.3-dev-rev636-gfbd7e13aa-master
    cpe:2.3:a:gpac:gpac:2.3-dev-rev636-gfbd7e13aa-master
  • Gpac » Gpac » Version: 2.3.0
    cpe:2.3:a:gpac:gpac:2.3.0
  • Gpac » Gpac » Version: 2.3.0-dev
    cpe:2.3:a:gpac:gpac:2.3.0-dev


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