etcd: etcd: Authentication bypass due to improper Certificate Revocation List enforcement on gRPC listener

A flaw was found in etcd, a distributed key-value store. When etcd is configured to use separate listeners for HTTP and gRPC client endpoints, the Certificate Revocation List CRL is not properly enforced on the gRPC listener. This oversight allows a client with a revoked certificate to successful...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to improper enforcement of the Certificate Revocation List on the gRPC listener when separate listeners are configured for HTTP and gRPC client endpoints. An attacker can gain unauthorized access and...

PT-2026-56612

Name of the Vulnerable Software and Affected Versions etcd versions prior to 3.5.32 etcd versions prior to 3.6.13 Description etcd is a distributed key-value store for the data of a distributed system. When configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto...