CVE advisoryCRITICAL
CVE-2026-40393
Mesa WebGPU Out-of-Bounds Memory Access Vulnerability.
Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.
A vulnerability exists in the Mesa graphics library's WebGPU implementation where an out-of-bounds memory access can occur due to memory allocation size being dependent on untrusted input. This could impact system stability and availability if WebGPU is used with untrusted data. It is important to identify affected Mes