Vulnerability · Published Sep 14, 2026 · Assigned by VulDB

CVE-2026-90791GPAC MP4Box base_scenegraph.c gf_node_unregister use after free

Medium 6.3

In plain English

A medium-severity use-after-free in GPAC. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.5%top 56.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was detected in GPAC up to f1219cde. This vulnerability affects 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 can be executed remotely. The exploit is now public and may be used. Upgrading to version abi-16.23 is able to resolve this issue. The patch is identified as 9eb40df4448b88d6a6ce3454657c06f47eff0b24. Upgrading the affected component is recommended.

Affected products (as reported)

Vendor	Product	Versions
n/a	GPAC	f1219cde

Weakness: CWE-416, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

References

VDB-403297 | GPAC MP4Box base_scenegraph.c gf_node_unregister use after free vdb-entry, technical-description
VDB-403297 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-90791 | CVE Analysis and Report third-party-advisory
Submit #914122 | GPAC GPAC (MP4Box) gpac f1219cde (master, 2026-07-25) Use After Free third-party-advisory
https://github.com/gpac/gpac/issues/3801 issue-tracking
https://github.com/Ech06/CVE_submit/blob/main/gpac_3801.md exploit
https://github.com/gpac/gpac/commit/9eb40df4448b88d6a6ce3454657c06f47eff0b24 patch
https://github.com/gpac/gpac/releases/tag/abi-16.23 patch
https://github.com/gpac/gpac/ product