CVE-2026-9572: GPAC MP4Box media.c Media_GetSample memory leak

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-05-26 · updated 2026-07-23
Weakness: CWE-401

Description

A security vulnerability has been detected in GPAC up to 2.4.0. Affected by this issue is the function Media_GetSample of the file src/isomedia/media.c of the component MP4Box. Such manipulation of the argument cat leads to memory leak. The attack can only be performed from a local environment. The exploit has been disclosed publicly and may be used. The name of the patch is e79c5cbe8b3fed27f4854ec229457d30c96206f1. It is best practice to apply a patch to resolve this issue.

Affected products

GPAC: through 2.4.0

References

https://github.com/gpac/gpac/
https://github.com/gpac/gpac/commit/e79c5cbe8b3fed27f4854ec229457d30c96206f1
https://github.com/gpac/gpac/issues/3557
https://github.com/user-attachments/files/27270415/poc.zip
https://vuldb.com/submit/817137
https://vuldb.com/vuln/365631
https://vuldb.com/vuln/365631/cti
https://github.com/gpac/gpac/issues/3557
https://vuldb.com/submit/817137

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