{"action":"Upgrade xorg-server to 2:21.1.7-3+deb12u12 or later.","affected":[{"fixed":"2:21.1.7-3+deb12u12","introduced":"0"}],"component":"xorg-server","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2:21.1.7-3+deb12u12"],"id":"tcs_01M5NRRQBG8TRHMS7DRC9922H2","modified_at":"2026-10-27T10:00:12.785000115Z","published_at":"2026-05-05T16:16:11.647Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-34000","https://security-tracker.debian.org/tracker/CVE-2026-34000"],"severity":{"label":"critical","score":9.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-34000","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-34000"}],"summary":"A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the `CheckSetGeom()` and `XkbAddGeomKeyAlias` functions, allows an att"}