Vulnerability · Published Sep 14, 2026 · Assigned by VulDB

CVE-2026-90827GPAC MP4Box base_scenegraph.c gf_node_deactivate_ex use after free

Low 3.3

In plain English

A low-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 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)3.3Low

Exploit odds (30 days)0.2%top 93.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was identified in GPAC 26.07.0. This affects the function gf_node_deactivate_ex of the file scenegraph/base_scenegraph.c of the component MP4Box. Such manipulation leads to use after free. The attack must be carried out locally. The exploit is publicly available and might be used. Upgrading to version abi-16.23 is able to mitigate this issue. The name of the patch is 49dee5cad329cfed310c1682703df7daa47df31a. You should upgrade the affected component.

Affected products (as reported)

Vendor	Product	Versions
n/a	GPAC	26.07.0

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

References

VDB-403329 | GPAC MP4Box base_scenegraph.c gf_node_deactivate_ex use after free vdb-entry, technical-description
VDB-403329 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-90827 | CVE Analysis and Report third-party-advisory
Submit #914952 | GPAC GPAC MP4Box v26.07.0 Heap Use-After-Free third-party-advisory
https://github.com/gpac/gpac/issues/3813 issue-tracking
https://github.com/user-attachments/files/30400423/poc_20_nstatx.zip exploit
https://github.com/gpac/gpac/commit/49dee5cad329cfed310c1682703df7daa47df31a patch
https://github.com/gpac/gpac/releases/tag/abi-16.23 patch
https://github.com/gpac/gpac/ product