{"action":"Upgrade bind9 to 1:9.20.23-1 or later.","affected":[{"fixed":"1:9.20.23-1","introduced":"0"}],"component":"bind9","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:9.20.23-1"],"id":"tcs_01M5NRVEHB1ZV5ETAPC2SGSZ21","modified_at":"2026-10-01T03:03:22.404355482Z","published_at":"2026-05-20T13:16:23.923Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-3593","https://security-tracker.debian.org/tracker/CVE-2026-3593"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-3593#Debian:14/bind9","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-3593"}],"summary":"A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIN"}