{"schema_version":"1.3.1","id":"GO-2026-4833","modified":"2026-03-26T20:33:05Z","published":"2026-03-26T20:33:05Z","aliases":["CVE-2026-33215","GHSA-fcjp-h8cc-6879"],"summary":"NATS is vulnerable to MQTT hijacking via Client ID in github.com/nats-io/nats-server","details":"NATS is vulnerable to MQTT hijacking via Client ID in github.com/nats-io/nats-server","affected":[{"package":{"name":"github.com/nats-io/nats-server","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{}},{"package":{"name":"github.com/nats-io/nats-server/v2","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.11.15"},{"introduced":"2.12.0-RC.1"},{"fixed":"2.12.6"}]}],"ecosystem_specific":{}}],"references":[{"type":"ADVISORY","url":"https://github.com/nats-io/nats-server/security/advisories/GHSA-fcjp-h8cc-6879"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33215"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4833","review_status":"UNREVIEWED"}}