CVE-2026-90827
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AI Threat Summary
CVE-2026-90827 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 identified in GPAC 26.07.0. This affects the function gf_node_deactivate_ex of the file scenegraph/base_scenegraph.c of the component MP4Box. Such manipulation leads to use after free. The attack must be carried out locally. The exploit is publicly available and might be used. Upgrading to version abi-16.23 is able to mitigate this issue. The name of the patch is 49dee5cad329cfed310c1682703df7daa47df31a. You should upgrade the affected component.
Attack Chain
Attacker scans for vulnerable versions using version banners or PoC scanners
Attacker triggers CVE-2026-90827 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-2026-90827 |
| 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/49dee5cad329cfed310c1682…
- https://github.com/gpac/gpac/issues/3813
- https://github.com/gpac/gpac/releases/tag/abi-16.23
- https://github.com/user-attachments/files/30400423/poc_20_ns…
- https://vuldb.com/cve/CVE-2026-90827
- https://vuldb.com/submit/914952
- https://vuldb.com/vuln/403329
- https://vuldb.com/vuln/403329/cti