{"action":"Upgrade xorg-server to 2:21.1.16-1.3+deb13u3 or later.","affected":[{"fixed":"2:21.1.16-1.3+deb13u3","introduced":"0"}],"component":"xorg-server","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["2:21.1.16-1.3+deb13u3"],"id":"tcs_01M5NSPRKNSX4BPP0PYP9KBNMW","modified_at":"2026-10-01T03:03:16.744922752Z","published_at":"2026-06-05T12:16:39.927Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-50263","https://security-tracker.debian.org/tracker/CVE-2026-50263"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-50263#Debian:13/xorg-server","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-50263"}],"summary":"A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, lea"}