CVE-2026-73499

etcd vulnerable to authorization bypass in the Watch gRPC API when using clientv3.WithFromKey() with an open-ended range end. Before versions 3.5.33, 3.6.14, and 3.7.1, a user granted READ on a single exact key could observe watch events for every key lexicographically greater than or equal to th...

CVE-2026-73499 etcd: Watch API authorization bypass via open-ended range requests

etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33, 3.6.14, and 3.7.1, a user granted READ permission on a single exact key can use the Watch gRPC API with clientv3.WithFromKey to receive watch events for every key lexicographically greater than o...

etcd: Watch API authorization bypass via open-ended range requests

Impact What kind of vulnerability is it? Who is impacted? A user granted READ permission on a single, exact key can use the Watch gRPC API with clientv3.WithFromKey an open-ended, "from this key to the end of the keyspace" watch to receive watch events for every key lexicographically greater than...

GHSA-XG4H-6GFC-H4M8 etcd: Watch API authorization bypass via open-ended range requests

Impact What kind of vulnerability is it? Who is impacted? A user granted READ permission on a single, exact key can use the Watch gRPC API with clientv3.WithFromKey an open-ended, "from this key to the end of the keyspace" watch to receive watch events for every key lexicographically greater than...