CVE-2026-90794 GPAC MP4Box vrml_tools.c gf_sg_script_load use after free
Remote attackers can trigger a use-after-free in GPAC MP4Box via crafted files, potentially leading to code execution or crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-90794?
CVE-2026-90794 is a medium-severity use after free vulnerability in GPAC, published on 14 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability was found in GPAC up to f1219cde. The affected element is the function gf_sg_script_load of the file scenegraph/vrml_tools.c of the component MP4Box. Performing a manipulation results in use after free. It is possible to initiate the attack remotely. The exploit has been made public and could be used. Upgrading to version abi-16.23 is sufficient to fix this issue. The patch is named 9eb40df4448b88d6a6ce3454657c06f47eff0b24. It is advisable to upgrade the affected component.
Which versions are affected by CVE-2026-90794?
How do I fix CVE-2026-90794?
No fix has been published for CVE-2026-90794 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-2026-90794 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90794 exists.
Sources
Also known as GHSA-7w37-2jqq-j9p2, UBUNTU-CVE-2026-90794.