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CVE-2026-40393

Published: 4/12/2026 Last updated: 4/13/2026 Reserved: 4/12/2026

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.

CNA assigner: mitre (8254265b-2729-46b6-b9e3-3dfca2d5bfca) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 8.1 High CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Opam packages affected (6)

conf-gles2 conf-glfw3 conf-libgl conf-mesa gles3 raylib

Products affected (1)

Product Vendor Version
Mesa mesa3d n/a

References (2)