{"action":"Upgrade mesa to 26.0.1-1 or later.","affected":[{"fixed":"26.0.1-1","introduced":"0"}],"component":"mesa","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["26.0.1-1"],"id":"tcs_01M5NRXVD7MD43BSC73BJA8V9D","modified_at":"2026-10-27T09:47:36.014811504Z","published_at":"2026-04-12T19:16:20.797Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-40393","https://security-tracker.debian.org/tracker/CVE-2026-40393"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-40393#Debian:14/mesa","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-40393"}],"summary":"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."}