CVE-2026-40393

Published Apr 12, 2026

Last updated a month ago

Overview

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.
Source
cve@mitre.org
NVD status
Analyzed
Products
mesa

Risk scores

CVSS 3.1

Type
Primary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

Weaknesses

cve@mitre.org
CWE-787

Social media

Hype score
Not currently trending

Configurations