{"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_01M5NQCZMFAFCNQK0PHZFERF3D","modified_at":"2026-10-25T09:47:36.513076122Z","published_at":"2026-07-22T15:16:51.837Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-11721","https://security-tracker.debian.org/tracker/CVE-2026-11721"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-11721#Debian:14/bind9","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-11721"}],"summary":"It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels than the zone in which the RRSIG is contained. This causes `named` to produce a wildcard n"}