CVE-2026-108538: Use After Free in GPAC
Description
CVE-2026-108538 is a use-after-free vulnerability in the GPAC multimedia framework, specifically in the function gf_mx_v within utils/os_thread.c of the MP4Box component. This vulnerability affects GPAC version 26.07 and can be exploited remotely without user interaction. The vulnerability has a medium severity score of 5.3 and public exploit code has been disclosed. The vendor has not responded to the disclosure and no official patch or remediation guidance is currently available.
CVSS v4.0
Score 5.3medium
Affected software
GPAC
cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-108538 exists in GPAC up to version 26.07.0 in the MP4Box component's function gf_mx_v located in utils/os_thread.c. It is a use-after-free flaw that can be triggered remotely, potentially leading to memory corruption or other unintended behavior. Public exploit code has been disclosed, increasing the risk of exploitation. The vendor has not provided any response or patch to address this issue.
Potential Impact
Successful exploitation of this use-after-free vulnerability may allow remote attackers to cause memory corruption, potentially leading to application crashes or arbitrary code execution. The CVSS 4.0 base score of 5.3 indicates a medium severity impact with low attack complexity and no user interaction required. However, the vulnerability requires low privileges and has limited scope and impact metrics.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no patch is publicly available, users should consider mitigating exposure by restricting network access to vulnerable GPAC instances or employing other environment-specific controls until an official fix is released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-10-10T13:16:56.378Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6acb15372cdf04f656b0d02b
Added to database: 10/11/2026, 04:48:55 UTC
Last enriched: 10/11/2026, 05:03:18 UTC
Last updated: 10/11/2026, 05:08:09 UTC
Views: 5
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