CVE-2026-40393

State
Published
Severity
8.1 High
Published
Apr 12, 2026
Updated
Jul 13, 2026
Reserved
Apr 12, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.18.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hmitre

Weaknesses

Affected Products

ProductVersions
Mesamesa3d
  • before 25.3.6Affected
  • 26.0.0 to before 26.0.1Affected

References

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