{"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_01M5NSPJVWRTS2QAP7N9C5KKT0","modified_at":"2026-10-25T10:00:34.884203549Z","published_at":"2026-07-22T14:17:20.627Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-50252","https://security-tracker.debian.org/tracker/CVE-2026-50252"],"severity":{"label":"critical","score":9.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-50252#Debian:13/unbound","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-50252"}],"summary":"In NLnet Labs Unbound 1.4.22 up to and including 1.25.1, UDP source port is randomized and intended to serve as a secret value that increases the entropy of DNS transactions. When resolver load balanc"}