{"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_01M5NRZ614W7B5NQ9AH1ZFRSS2","modified_at":"2026-10-25T10:00:29.579786569Z","published_at":"2026-07-22T14:17:18.560Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-41637","https://security-tracker.debian.org/tracker/CVE-2026-41637"],"severity":{"label":"low","score":3.7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-41637#Debian:13/unbound","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-41637"}],"summary":"In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, client terminated DNS-over-QUIC (DoQ) queries are not accounted properly by Unbound resulting in low-cost inflation of the waiting number of re"}