{"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_01M5NRQG5NHSNTJDQR1HP5ZRBD","modified_at":"2026-10-27T10:00:56.268055737Z","published_at":"2026-04-22T10:16:51.857Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-33261","https://security-tracker.debian.org/tracker/CVE-2026-33261"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-33261#Debian:14/pdns-recursor","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-33261"}],"summary":"A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service."}