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CVE-2026-40393

9.8 critical SSVC exploitation: none Modified
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 1

  1. First seenCVSS 9.8 · mesa3dNVD modified 2026-10-26 21:10

Affected (CPE criteria) 2

  • cpe:2.3:a:mesa3d:mesa:*:*:*:*:*:*:*:*
  • cpe:2.3:a:mesa3d:mesa:26.0.0:*:*:*:*:*:*:*

References 3