{"action":"Upgrade unbound to 1.26.1-0+deb13u1 or later.","affected":[{"fixed":"1.26.1-0+deb13u1","introduced":"0"}],"component":"unbound","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.26.1-0+deb13u1"],"id":"tcs_01M5NT12TBKCF0D57RWMZCHEM6","modified_at":"2026-10-25T10:00:58.008299307Z","published_at":"2026-07-22T14:17:21.663Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-55973","https://security-tracker.debian.org/tracker/CVE-2026-55973"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-55973#Debian:13/unbound","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-55973"}],"summary":"In NLnet Labs Unbound 1.23.0 up to and including 1.25.1, when 'dns-error-reporting: yes' is set, the EDNS Report-Channel option (code 18) from the last upstream response is read and uses the option's"}