CVE-2026-90610 GPAC MP4Box svg_attributes.c gf_svg_attributes_copy buffer over-read

Medium 4.8 Published Updated

A local attacker can trigger a buffer over-read in GPAC MP4Box, potentially causing a crash or leaking memory contents.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-90610?

CVE-2026-90610 is a medium-severity memory corruption vulnerability in GPAC, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability was found in GPAC up to f1219cde. This affects the function gf_svg_attributes_copy of the file scenegraph/svg_attributes.c of the component MP4Box. Performing a manipulation results in buffer over-read. The attack is only possible with local access. The exploit has been made public and could be used. Upgrading to version abi-16.23 mitigates this issue. The patch is named afca1f1181668d85941d51ed1adf647807d5d975. Upgrading the affected component is recommended.

Weakness: CWE-126, CWE-119

Which versions are affected by CVE-2026-90610?

How do I fix CVE-2026-90610?

No fix has been published for CVE-2026-90610 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-90610 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90610 exists.

Sources

Also known as GHSA-6458-gwqx-h3fr, UBUNTU-CVE-2026-90610.

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