CVE-2026-91089 GPAC base_scenegraph.c gf_node_get_name_and_id use after free
Remote attackers can exploit a use-after-free flaw in GPAC's scenegraph handling to potentially execute arbitrary code or cause denial of service.
- 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-2026-91089?
CVE-2026-91089 is a medium-severity use after free vulnerability in GPAC, published on 15 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. Impacted is the function gf_node_get_name_and_id of the file scenegraph/base_scenegraph.c. The manipulation results in use after free. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version abi-16.23 is recommended to address this issue. The patch is identified as 49dee5cad329cfed310c1682703df7daa47df31a. You should upgrade the affected component.
Which versions are affected by CVE-2026-91089?
How do I fix CVE-2026-91089?
No fix has been published for CVE-2026-91089 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-2026-91089 being exploited?
There is no known exploitation of CVE-2026-91089 in the wild and no public exploit code.
Sources
Also known as GHSA-62rw-w2vq-4j55, UBUNTU-CVE-2026-91089.