Vulnerability · Published Sep 15, 2026 · Assigned by VulDB

CVE-2026-91087GPAC Compositor media_object.c gf_mo_get_od_id use after free

High 7.3

In plain English

A high-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 0.6% (higher than 51% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.6%top 49.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A flaw has been found in GPAC up to f1219cde. This vulnerability affects the function gf_mo_get_od_id of the file compositor/media_object.c of the component Compositor. Executing a manipulation can lead to use after free. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version abi-16.24 is able to resolve this issue. This patch is called e34f4ba349d55cd1849f0bcf4cf46552732e2db7. Upgrading the affected component is advised.

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:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

References

VDB-403649 | GPAC Compositor media_object.c gf_mo_get_od_id use after free vdb-entry, technical-description
VDB-403649 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-91087 | CVE Analysis and Report third-party-advisory
Submit #919756 | GPAC master f1219cde (2026-07-25) Use After Free third-party-advisory
https://github.com/gpac/gpac/issues/3807 issue-tracking
https://github.com/user-attachments/files/30399593/poc_12_info.zip exploit
https://github.com/gpac/gpac/commit/e34f4ba349d55cd1849f0bcf4cf46552732e2db7 patch
https://github.com/gpac/gpac/releases/tag/abi-16.24 patch
https://github.com/gpac/gpac/ product