{"action":"Upgrade pdns-recursor to 5.4.1-1 or later.","affected":[{"fixed":"5.4.1-1","introduced":"0"}],"component":"pdns-recursor","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["5.4.1-1"],"id":"tcs_01M5NRQXB6GMM3R3RC6DNCW2E2","modified_at":"2026-10-26T12:02:57.191060891Z","published_at":"2026-04-22T10:16:52.223Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-33601","https://security-tracker.debian.org/tracker/CVE-2026-33601"],"severity":{"label":"medium","score":4.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-33601#Debian:14/pdns-recursor","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-33601"}],"summary":"If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing consistency check and leading to a"}