{"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_01M5NRQEYKF714K63FDJQMG39Q","modified_at":"2026-10-26T12:02:57.187476582Z","published_at":"2026-04-22T10:16:51.580Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-33259","https://security-tracker.debian.org/tracker/CVE-2026-33259"],"severity":{"label":"medium","score":5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-33259#Debian:14/pdns-recursor","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-33259"}],"summary":"Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor. Normally concurrent transfers of the same RPZ zone can only occur wit"}