Incorrect authorization in nats-server - CVE-2023-47090
Published: June 11, 2025
Vulnerability identifier: #VU111068
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-47090
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: NATS - The Cloud Native Messaging System
Affected software:
nats-server
nats-server
Detailed vulnerability description
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due to authentication bypass. A remote user in an authorization block can sometimes be used for unauthenticated access, even when the intention of the configuration was for each user to have an account
How to mitigate CVE-2023-47090
Install updates from vendor's website.