CVE-2026-90825 GPAC MP4Box base_scenegraph.c gf_node_unregister use after free
A local attacker can exploit a use-after-free flaw in GPAC MP4Box to potentially execute arbitrary code or cause a denial of service.
- 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-2026-90825?
CVE-2026-90825 is a medium-severity use after free 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 26.07.0. Affected by this vulnerability is the function gf_node_unregister of the file scenegraph/base_scenegraph.c of the component MP4Box. The manipulation results in use after free. The attack is only possible with local access. The exploit has been made public and could be used. Upgrading to version abi-16.23 addresses this issue. The patch is identified as 9eb40df4448b88d6a6ce3454657c06f47eff0b24. Upgrading the affected component is advised.
Which versions are affected by CVE-2026-90825?
How do I fix CVE-2026-90825?
No fix has been published for CVE-2026-90825 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-90825 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90825 exists.
Sources
Also known as GHSA-xxcj-23x9-7vhr, UBUNTU-CVE-2026-90825.