{"action":"Upgrade unbound to 1.22.0-2+deb13u3 or later.","affected":[{"fixed":"1.22.0-2+deb13u3","introduced":"0"}],"component":"unbound","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.22.0-2+deb13u3"],"id":"tcs_01M5NS1C3TRMJ7V4ZTVH85VEA0","modified_at":"2026-10-01T03:03:23.011738523Z","published_at":"2026-05-20T10:16:27.903Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-42959","https://security-tracker.debian.org/tracker/CVE-2026-42959"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-42959#Debian:13/unbound","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-42959"}],"summary":"NLnet Labs Unbound up to and including version 1.25.0 has a denial of service vulnerability in the DNSSEC validator that can lead to a crash given malicious upstream replies. When Unbound constructs c"}