{"id":"GO-2026-4831","summary":"NATS is vulnerable to pre-auth DoS through WebSockets client service in github.com/nats-io/nats-server","details":"NATS is vulnerable to pre-auth DoS through WebSockets client service in github.com/nats-io/nats-server","aliases":["BIT-nats-2026-33219","CVE-2026-33219","GHSA-8r68-gvr4-jh7j"],"modified":"2026-03-27T18:26:05.263604546Z","published":"2026-03-26T20:33:05Z","related":["CGA-jmwc-c8gg-j9hp"],"database_specific":{"review_status":"UNREVIEWED","url":"https://pkg.go.dev/vuln/GO-2026-4831"},"references":[{"type":"ADVISORY","url":"https://github.com/nats-io/nats-server/security/advisories/GHSA-8r68-gvr4-jh7j"},{"type":"WEB","url":"https://advisories.nats.io/CVE/secnote-2026-02.txt"},{"type":"WEB","url":"https://advisories.nats.io/CVE/secnote-2026-11.txt"},{"type":"WEB","url":"https://github.com/advisories/GHSA-qrvq-68c2-7grw"}],"affected":[{"package":{"name":"github.com/nats-io/nats-server","ecosystem":"Go","purl":"pkg:golang/github.com/nats-io/nats-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-4831.json"}},{"package":{"name":"github.com/nats-io/nats-server/v2","ecosystem":"Go","purl":"pkg:golang/github.com/nats-io/nats-server/v2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.11.15"},{"introduced":"2.12.0-RC.1"},{"fixed":"2.12.6"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-4831.json"}}],"schema_version":"1.7.5"}