CVE-2026-58211
5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| nats-io | nats-server | < 2.12.12 | affected |
| nats-io | nats-server | >= 2.14.0-RC.1, < 2.14.3 | affected |
Weaknesses
- CWE-863: CWE-863: Incorrect Authorization
References
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.