← Back

CVE-2026-58253

nvd nist
Published: Jul 8, 2026Modified: Jul 13, 2026

JSON object

Loading...
8.8
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L
Exploitability: 2.8 / Impact: 5.3
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 2.14.0, 2.12.7, and 2.11.16, when no_auth_user was configured, a parser fast path intended for ordinary client connections could also apply to route or leafnode listeners, allowing an unauthenticated peer to bypass inter-server CONNECT authentication and operate with the privileges associated with that connection type. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.

Affected (2)

Linuxfoundation
1 product
Nats Server
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Linuxfoundation
Nats Server
Before 2.11.16
Nats Server
From 2.12.0 to 2.12.7

Related CWEs

CWE-287
Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (7)

Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Release Notes
Source: security-advisories@github.com
Release Notes
Source: security-advisories@github.com
Release Notes
Source: security-advisories@github.com
Vendor Advisory

Timeline

No history available yet.