{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"github.com/nats-io/nats-server","cve_ids":["CVE-2026-33219"],"ecosystem":"Go","epss":0.00546,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-8r68-gvr4-jh7j","id":"tcs_01M5KGGCV438E1FZQHXVZ7YWXG","modified_at":"2026-03-27T18:26:09.072082Z","published_at":"2026-03-26T20:33:05Z","references":["https://osv.dev/vulnerability/GO-2026-4831","https://github.com/nats-io/nats-server/security/advisories/GHSA-8r68-gvr4-jh7j","https://advisories.nats.io/CVE/secnote-2026-02.txt","https://advisories.nats.io/CVE/secnote-2026-11.txt","https://github.com/advisories/GHSA-qrvq-68c2-7grw"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GO-2026-4831","url":"https://osv.dev/vulnerability/GO-2026-4831"},{"source":"nvd","source_id":"CVE-2026-33219","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33219"}],"summary":"NATS is vulnerable to pre-auth DoS through WebSockets client service in github.com/nats-io/nats-server"}