{"action":"Upgrade nats-server to 2.14.3-1 or later.","affected":[{"fixed":"2.14.3-1","introduced":"0"}],"component":"nats-server","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.14.3-1"],"id":"tcs_01M5NT3YTX1244X7GP6VHEAD83","modified_at":"2026-10-26T12:02:36.335140227Z","published_at":"2026-07-08T20:16:53.800Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-58209","https://security-tracker.debian.org/tracker/CVE-2026-58209"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-58209#Debian:14/nats-server","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-58209"}],"summary":"NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, MQTT retained message delivery and QoS1+ durable replay could deliver mes"}