{"id":"GO-2026-6107","revision":"af4e000430264a0a90ecb2014d0bff91","records":[{"revision":"af4e000430264a0a90ecb2014d0bff91","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-6107","aliases":["BIT-etcd-2026-73500","CVE-2026-73500","GHSA-6vch-q96h-7gc3"],"title":"Unbounded TLS handshake goroutines in go.etcd.io/etcd/client/pkg/v3","description":"In go.etcd.io/etcd/client/pkg/v3 before 3.5.33, 3.6.14, and 3.7.1, TLS handshakes on listeners created by NewTLSListener do not enforce a handshake deadline. An unauthenticated network attacker who connects to an etcd TLS listener without sending a ClientHello causes a goroutine and a tracking map entry to block indefinitely. Opening many such connections exhausts memory, leading to a denial of service.","state":0,"publishedAt":"2026-08-18T16:38:10+00:00","modifiedAt":"2026-08-19T21:41:59.2738536+00:00","affected":[{"ecosystem":"Go","name":"go.etcd.io/etcd/client/pkg/v3","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.5.33"},{"kind":"introduced","version":"3.6.0"},{"kind":"fixed","version":"3.6.14"},{"kind":"introduced","version":"3.7.0-alpha.0"},{"kind":"fixed","version":"3.7.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/etcd-io/etcd/security/advisories/GHSA-6vch-q96h-7gc3","https://github.com/etcd-io/etcd/pull/22130","https://github.com/etcd-io/etcd/releases/tag/v3.5.33","https://github.com/etcd-io/etcd/releases/tag/v3.6.14","https://github.com/etcd-io/etcd/releases/tag/v3.7.1"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-6107","license":"OSV · upstream source license applies","key":"osv:GO-2026-6107","identifiers":["GO-2026-6107","BIT-etcd-2026-73500","CVE-2026-73500","GHSA-6vch-q96h-7gc3"]},"retained":false,"historicalAffected":[]}],"coverage":[]}