{"action":"Upgrade bind9 to 1:9.20.26-1 or later.","affected":[{"fixed":"1:9.20.26-1","introduced":"0"}],"component":"bind9","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:9.20.26-1"],"id":"tcs_01M5NQAAB994A8SJ5MNQKZS7QK","modified_at":"2026-11-03T09:47:38.951712873Z","published_at":"2026-07-22T15:16:51.457Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-11331","https://security-tracker.debian.org/tracker/CVE-2026-11331"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-11331#Debian:14/bind9","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-11331"}],"summary":"An attacker who knows (or guesses) that a resolver uses RPZ with wildcard CNAME policies can craft query names long enough to trigger a NAMETOOLONG error condition during RPZ processing. This is not h"}