CVE-2026-90611
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AI Threat Summary
CVE-2026-90611 is a moderate vulnerability with a CVSS score of 3.3 affecting the target software. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.
Description
A vulnerability was determined in GPAC up to f1219cde. This impacts the function xmt_parse_element of the file scene_manager/loader_xmt.c of the component MP4Box. Executing a manipulation can lead to reachable assertion. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. Upgrading to version abi-16.23 will fix this issue. This patch is called afca1f1181668d85941d51ed1adf647807d5d975. It is recommended to upgrade the affected component.
Attack Chain
Attacker scans for vulnerable versions using version banners or PoC scanners
Attacker triggers CVE-2026-90611 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-2026-90611 |
| CVSS Score | 3.3 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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/3820
- https://github.com/gpac/gpac/releases/tag/abi-16.23
- https://github.com/r1ck9-2q/cve_summit/blob/main/Vuln-GPAC-M…
- https://vuldb.com/cve/CVE-2026-90611
- https://vuldb.com/submit/913517
- https://vuldb.com/vuln/403193
- https://vuldb.com/vuln/403193/cti
- https://github.com/gpac/gpac/issues/3820