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OpenAdvisories
Low · 3.3 CVE-2026-9567 EUVD-2026-31945GHSA-8h6c-5qr8-7wvp

GPAC MP4Box isom_intern.c MergeFragment null pointer dereference

Published May 26, 2026 · Updated May 26, 2026 · Assigned by VulDB

Description

A security flaw has been discovered in GPAC up to 2.4.0. Affected is the function MergeFragment of the file src/isomedia/isom_intern.c of the component MP4Box. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. The patch is identified as 525bf1af642c30af04e4df5345e6d798c0a4d8a1. It is advisable to implement a patch to correct this issue.

Affected products

VendorProductAffectedFixed
— GPAC 2.0, 2.1, 2.2, 2.3, 2.4.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 11 gpac No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu Pro 24.04 LTS gpac No fix yet —
Ubuntu Pro 22.04 LTS gpac No fix yet —
Ubuntu Pro 20.04 LTS gpac No fix yet —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 18.04 LTS gpac No fix yet —
Ubuntu Pro 16.04 LTS gpac No fix yet —
Ubuntu Pro 14.04 LTS gpac No fix yet —

References