{"action":"Upgrade dnsdist to 1.9.15-0+deb13u1 or later.","affected":[{"fixed":"1.9.15-0+deb13u1","introduced":"0"}],"component":"dnsdist","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.9.15-0+deb13u1"],"id":"tcs_01M5NRZPCCDNHF4VF90643M2TC","modified_at":"2026-10-01T03:03:22.880024716Z","published_at":"2026-06-25T13:16:40.547Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-42004","https://security-tracker.debian.org/tracker/CVE-2026-42004"],"severity":{"label":"low","score":3.7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-42004#Debian:13/dnsdist","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-42004"}],"summary":"An attacker can send a crafted EDNS OPT record that will be ignored by DNSdist’s filtering rules, but will be rewritten as a valid OPT record when EDNS Client Subnet is inserted, causing the backend t"}