{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"libx11","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":[],"id":"tcs_01M5NW5MTYNKPJ0SG37Z4ZKYSD","modified_at":"2026-09-23T08:47:32.621321815Z","published_at":"2026-09-21T14:17:22.273Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-88806","https://security-tracker.debian.org/tracker/CVE-2026-88806"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-88806","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-88806"}],"summary":"A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing the key_sym_map."}