← Back

CVE-2026-58211

nvd nist
Published: Jul 8, 2026Modified: Jul 9, 2026

JSON object

Loading...
5.4
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Exploitability: 2.8 / Impact: 2.5
Source: security-advisories@github.com (Secondary)

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 (2)

Linuxfoundation
1 product
Nats Server
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Linuxfoundation
Nats Server
From 2.12.0 to 2.12.12
Nats Server
From 2.14.0 to 2.14.3

Related CWEs

CWE-863
Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (1)

Source: security-advisories@github.com
MitigationVendor Advisory

Timeline

No history available yet.