CVE-2026-90684 GPAC MP4Box base_scenegraph.c gf_node_get_field_count assertion
A reachable assertion in GPAC MP4Box allows local attackers to cause a denial of service via crafted media files.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-90684?
CVE-2026-90684 is a low-severity denial of service vulnerability in GPAC, published on 14 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A flaw has been found in GPAC up to f1219cde. Affected by this vulnerability is the function gf_node_get_field_count of the file scenegraph/base_scenegraph.c of the component MP4Box. Executing a manipulation can lead to reachable assertion. It is possible to launch the attack on the local host. The exploit has been published and may be used. Upgrading to version abi-16.23 addresses this issue. This patch is called 49dee5cad329cfed310c1682703df7daa47df31a. You should upgrade the affected component.
Weakness: CWE-617
Which versions are affected by CVE-2026-90684?
How do I fix CVE-2026-90684?
No fix has been published for CVE-2026-90684 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-90684 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90684 exists.
Sources
Also known as GHSA-xcqp-688w-crp9, UBUNTU-CVE-2026-90684.