Main Vulnerability Database Vulnerabilities #VU126858

Improper Authorization in nats-server - CVE-2026-33222

Published: April 22, 2026

Vulnerability identifier: #VU126858

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2026-33222

CWE-ID: CWE-285

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: NATS - The Cloud Native Messaging System

Affected software:
nats-server

Detailed vulnerability description

The vulnerability allows a remote user to bypass authorization checks.

The vulnerability exists due to insufficient authorization controls in Management API. A remote administrator can bypass the stream restore endpoint.

Install updates from vendor's website.