{"action":"Upgrade xorg-server to 2:21.1.23-1 or later.","affected":[{"fixed":"2:21.1.23-1","introduced":"0"}],"component":"xorg-server","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2:21.1.23-1"],"id":"tcs_01M5NSPPRC28ZEK38G40WD7KVB","modified_at":"2026-10-01T03:03:16.683884138Z","published_at":"2026-06-05T12:16:39.430Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-50260","https://security-tracker.debian.org/tracker/CVE-2026-50260"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-50260#Debian:14/xorg-server","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-50260"}],"summary":"A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter(). A client that sets up multiple SyncCounters and awaits on those triggers can trigger a use-after-free when destroyi"}