Out-of-bounds Write Affecting Mesa-libGL-devel package, versions <24.3.3-150700.93.8.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.43% (37th percentile)

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  • Snyk IDSNYK-SLES157-MESALIBGLDEVEL-16712419
  • published16 May 2026
  • disclosed13 May 2026

Introduced: 13 May 2026

CVE-2026-40393  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 Mesa-libGL-devel to version 24.3.3-150700.93.8.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream Mesa-libGL-devel package and not the Mesa-libGL-devel package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1