CVE-2026-40393
In Mesa before 25.3.6 and 26 before 26.0.1, out-of-bounds memory access can occur in WebGPU because the amount of to-be-allocated data depends on an untrusted party, and is then used for alloca.
- Score
- CVSS 3.1 9.8 Critical
- Status
- Modified - cve@mitre.org
- Published
- 2026-04-12
- Last modified
- 2026-10-26
- Weaknesses
- CWE-787
Affected products
References
- https://lists.freedesktop.org/archives/mesa-dev/2026-February/226597.html
- https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39866
- https://lists.debian.org/debian-lts-announce/2026/07/msg00021.html
