{"action":"Upgrade zookeeper to 3.9.6-1 or later.","affected":[{"fixed":"3.9.6-1","introduced":"0"}],"component":"zookeeper","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["3.9.6-1"],"id":"tcs_01M5NT6N1J9R4MSPE1H3Y1N0J2","modified_at":"2026-10-01T03:03:29.247615796Z","published_at":"2026-09-16T10:16:51.220Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-59969","https://security-tracker.debian.org/tracker/CVE-2026-59969"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-59969#Debian:14/zookeeper","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-59969"}],"summary":"Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments. When sslQuorum=true, zookeeper.fips-mode=true, ssl.quorum.hostnameVerification=true, and ssl.quorum.cl"}