CVE-2026-90685
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AI Threat Summary
CVE-2026-90685 is a moderate vulnerability with a CVSS score of 2.8 affecting the target software. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.
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.
Attack Chain
Attacker scans for vulnerable versions using version banners or PoC scanners
Attacker triggers CVE-2026-90685 vulnerability with a crafted request or payload
Vulnerability exploited to perform unauthorized actions on the target system
Depending on vulnerability type, attacker achieves data access, service disruption, or code execution
MITRE ATT&CK Techniques
Indicators of Compromise
| Type | Value | Description | |
|---|---|---|---|
| user_agent | Mozilla/5.0 (compatible; exploit/1.0) |
Generic exploit scanner user agent pattern | |
| url | /api/vuln-endpoint?payload=<malicious> |
Exploit attempt against application endpoint — monitor access logs for anomalous params |
Remediation
Quick Facts
| CVE ID | CVE-2026-90685 |
| CVSS Score | 2.8 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L |
| Published | 2026-09-14 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/gpac/gpac/
- https://github.com/gpac/gpac/commit/afca1f1181668d85941d51ed…
- https://github.com/gpac/gpac/issues/3825
- https://github.com/gpac/gpac/releases/tag/abi-16.23
- https://github.com/r1ck9-2q/cve_summit/blob/main/Vuln%20GPAC…
- https://vuldb.com/cve/CVE-2026-90685
- https://vuldb.com/submit/914027
- https://vuldb.com/vuln/403218
- https://vuldb.com/vuln/403218/cti