Quick answers
- Is CVE-2026-90827 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-90827 being exploited in the wild.
- How severe is CVE-2026-90827?
- Low severity, with a CVSS score of 3.3, published 14 September 2026.
- Which products and versions are affected?
- Gpac MP4Box 26.07.0.
- Is there a fix for CVE-2026-90827?
- A patch was published on 2026-07-28: Patch commit 49dee5cad329cfed310c1682703df7daa47df31a Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-90827 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-90827?
- 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
A use-after-free vulnerability exists in the gf_node_deactivate_ex function in scenegraph/base_scenegraph.c of GPAC's MP4Box component. The vulnerability is triggered through local file processing and requires no authentication or network access. An attacker can craft a malicious multimedia file to trigger the use-after-free condition, potentially leading to denial of service or code execution. The vulnerability has been patched in commit 49dee5cad329cfed310c1682703df7daa47df31a, and users should upgrade to version abi-16.23 or later.
Affected products
- GPAC MP4Box 26.07.0
Timeline
- 2026-09-14: disclosed
- 2026-07-28: patched: Patch commit 49dee5cad329cfed310c1682703df7daa47df31a