{"action":"Upgrade zookeeper to 3.9.5-1 or later.","affected":[{"fixed":"3.9.5-1","introduced":"0"}],"component":"zookeeper","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["3.9.5-1"],"id":"tcs_01M5NR4AXBS484HTDQ0J0CVJ4E","modified_at":"2026-10-01T03:02:32.818808821Z","published_at":"2026-03-07T09:16:07.437Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-24281","https://security-tracker.debian.org/tracker/CVE-2026-24281"],"severity":{"label":"high","score":7.4},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-24281#Debian:14/zookeeper","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-24281"}],"summary":"Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS (PTR) when IP SAN validation fails, allowing attackers who control or spoof PTR records to impersonate ZooKeeper serv"}