{"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_01M5NVVZX0ZEQ950PAF9MN73GY","modified_at":"2026-09-23T09:00:20.539308543Z","published_at":"2026-09-16T09:17:06.320Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-81642","https://security-tracker.debian.org/tracker/CVE-2026-81642"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-81642#Debian:13/unbound","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-81642"}],"summary":"In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in the DNSSEC validator that enables denial of service and possible remote code execution as a result of digesting DNSKEYs."}