{"id":"GO-2026-4841","summary":"NATS: Pre-auth remote server crash via WebSocket frame length overflow in wsRead in github.com/nats-io/nats-server","details":"NATS: Pre-auth remote server crash via WebSocket frame length overflow in wsRead in github.com/nats-io/nats-server","aliases":["BIT-nats-2026-27889","CVE-2026-27889","GHSA-pq2q-rcw4-3hr6"],"modified":"2026-03-27T14:14:21.538339Z","published":"2026-03-26T20:33:05Z","related":["CGA-x45q-fj2h-xjrc"],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4841","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/nats-io/nats-server/security/advisories/GHSA-pq2q-rcw4-3hr6"},{"type":"WEB","url":"https://advisories.nats.io/CVE/secnote-2026-03.txt"}],"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-2026-4841.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":"2.2.0"},{"fixed":"2.11.14"},{"introduced":"2.12.0"},{"fixed":"2.12.5"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-4841.json"}}],"schema_version":"1.7.5"}