Vulnerability · Published Sep 14, 2026 · Assigned by VulDB

CVE-2026-90686GPAC MP4Box loader_bt.c gf_bt_report memory corruption

Medium 5.3

In plain English

A medium-severity memory corruption in GPAC. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.9%top 41.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in GPAC up to f1219cde. This affects the function gf_bt_report of the file scene_manager/loader_bt.c of the component MP4Box. The manipulation results in memory corruption. The attack may be performed from remote. The exploit has been made public and could be used. Upgrading to version abi-16.23 is able to mitigate this issue. The patch is identified as afca1f1181668d85941d51ed1adf647807d5d975. It is suggested to upgrade the affected component.

Affected products (as reported)

Vendor	Product	Versions
n/a	GPAC	f1219cde

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

References

VDB-403219 | GPAC MP4Box loader_bt.c gf_bt_report memory corruption vdb-entry, technical-description
VDB-403219 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-90686 | CVE Analysis and Report third-party-advisory
Submit #914120 | GPAC GPAC (MP4Box) gpac f1219cde (master, 2026-07-25) Memory Corruption third-party-advisory
https://github.com/gpac/gpac/issues/3798 issue-tracking
https://github.com/Ech06/CVE_submit/blob/main/gpac_3798.md exploit
https://github.com/gpac/gpac/commit/afca1f1181668d85941d51ed1adf647807d5d975 patch
https://github.com/gpac/gpac/releases/tag/abi-16.23 patch
https://github.com/gpac/gpac/ product