Vulnerability · Published Sep 14, 2026 · Assigned by VulDB

CVE-2026-90685GPAC MP4Box lsr_dec.c lsr_exec_command_list assertion

Low 2.8

In plain English

A low-severity security flaw 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 5% of all known vulnerabilities).

Severity (CVSS 3.1)2.8Low

Exploit odds (30 days)0.2%top 95.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in GPAC up to f1219cde. Affected by this issue is the function lsr_exec_command_list of the file laser/lsr_dec.c of the component MP4Box. The manipulation leads to reachable assertion. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. Upgrading to version abi-16.23 can resolve this issue. The identifier of the patch is afca1f1181668d85941d51ed1adf647807d5d975. The affected component should be upgraded.

Affected products (as reported)

Vendor	Product	Versions
n/a	GPAC	f1219cde

Weakness: CWE-617 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

References

VDB-403218 | GPAC MP4Box lsr_dec.c lsr_exec_command_list assertion vdb-entry, technical-description
VDB-403218 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-90685 | CVE Analysis and Report third-party-advisory
Submit #914027 | GPAC up to commit f1219cde (2026-07-25) Denial of Service third-party-advisory
https://github.com/gpac/gpac/issues/3825 issue-tracking
https://github.com/r1ck9-2q/cve_summit/blob/main/Vuln%20GPAC%20MP4Box%20Assertion%20Failure%20assert(!codec-bs).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