Out-of-Bounds Memory Access in Mesa WebGPU Product by Mesa

CVE-2026-40393

What is CVE-2026-40393?

A vulnerability in Mesa's WebGPU can lead to out-of-bounds memory access, potentially allowing malicious actors to exploit the way memory allocations are handled, as the size of the data to be allocated is influenced by untrusted input. This flaw can lead to unpredictable behavior, including crashes or unauthorized data access, highlighting the importance of careful input validation in memory management strategies.

References