CVEvulnerability

CVE-2026-58211

5.4 MEDIUM Published 2026-07-08 Modified 2026-10-25 Official page ↗
Status
Analyzed
Published
2026-07-08
Last modified
2026-10-25
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-863

Description

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 configurations

• linuxfoundation nats-server (>= 2.12.0 < 2.12.12) • linuxfoundation nats-server (>= 2.14.0 < 2.14.3)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References