{"action":"Upgrade pdns-recursor to 5.4.3-1 or later.","affected":[{"fixed":"5.4.3-1","introduced":"0"}],"component":"pdns-recursor","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["5.4.3-1"],"id":"tcs_01M5NS0EA398H54FDFWYHB7ZR3","modified_at":"2026-10-26T11:47:26.378640430Z","published_at":"2026-06-25T14:16:39.653Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-42389","https://security-tracker.debian.org/tracker/CVE-2026-42389"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-42389","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-42389"}],"summary":"This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers."}