Quick answers
- Is CVE-2026-90826 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-90826 being exploited in the wild.
- How severe is CVE-2026-90826?
- Low severity, with a CVSS score of 2.8, published 14 September 2026.
- Which products and versions are affected?
- Gpac MP4Box 26.07.0.
- Is there a fix for CVE-2026-90826?
- A patch was published on 2026-07-27: Patch commit afca1f1181668d85941d51ed1adf647807d5d975 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-90826 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-90826?
- Check whether you run Gpac MP4Box at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An out-of-bounds read vulnerability exists in the gf_node_del function within scenegraph/base_scenegraph.c of GPAC's MP4Box component. The vulnerability is triggered during MP4 file processing and requires local code execution to exploit. An attacker must be able to supply a malformed MP4 file and execute MP4Box locally to trigger the out-of-bounds read, potentially leading to information disclosure or denial of service. The issue has been patched in version abi-16.23 (commit afca1f1181668d85941d51ed1adf647807d5d975).
Affected products
- GPAC MP4Box 26.07.0
Timeline
- 2026-09-14: disclosed
- 2026-07-27: patched: Patch commit afca1f1181668d85941d51ed1adf647807d5d975