Authentication Bypass by Primary Weakness Affecting nats-server2.14 package, versions <0:2.14.3-1.hum1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.29% (22nd percentile)

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  • Snyk IDSNYK-RHEL10-NATSSERVER214-19214369
  • published23 Aug 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

CVE-2026-58211  (opens in a new tab)
CWE-305  (opens in a new tab)

How to fix?

Upgrade RHEL:10 nats-server2.14 to version 0:2.14.3-1.hum1 or higher.
This issue was patched in RHSA-2026:36016.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nats-server2.14 package and not the nats-server2.14 package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1