| Package | Affected versions | Patched versions |
|---|---|---|
| nats-server | ≥ 2.12.0, < 2.12.12≥ 2.14.0, < 2.14.3 | 2.12.122.14.3 |
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a client could be registered as the configured no_auth_user through a parser path used when the first client operation was not CONNECT, bypassing user-level connection restrictions such as allowed_connection_types or proxy_required that normal authentication would apply. This issue is fixed in versions 2.14.3 and 2.12.12.
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