CVE-2026-27821

HIGH

7.8

Description

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.

Details CVE

Score CVSS v3.17.8

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Vecteur d'attaqueLOCAL

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie2/26/2026

Derniere modification3/11/2026

Sourcenvd

Observations honeypot0

Produits affectes

gpac:gpac

Faiblesses (CWE)

CWE-121

References

https://github.com/gpac/gpac/commit/9bd7137fded2db40de61a2cf3045812c8741ec52(security-advisories@github.com)

https://github.com/gpac/gpac/security/advisories/GHSA-q7qh-8r2r-q559(security-advisories@github.com)

https://github.com/gpac/gpac/security/advisories/GHSA-q7qh-8r2r-q559(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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