| Package | Affected versions | Patched versions |
|---|---|---|
| go.etcd.io/etcd | < 0.5.0-alpha.5.0.20190108173120-83c051b701d3 | 0.5.0-alpha.5.0.20190108173120-83c051b701d3 |
| go.etcd.io/etcd/v3 | ≥ 3.2.0, < 3.2.26≥ 3.3.0, < 3.3.11 | 3.2.263.3.11 |
| etcd | ≥ 3.2.0, < 3.2.26≥ 3.3.0, < 3.3.11 | 3.2.263.3.11 |
etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 are vulnerable to an improper authentication issue when role-based access control (RBAC) is used and client-cert-auth is enabled. If an etcd client server TLS certificate contains a Common Name (CN) which matches a valid RBAC username, a remote attacker may authenticate as that user with any valid (trusted) client certificate in a REST API request to the gRPC-gateway.
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