CVE-2023-47090

Published: Oct 30, 2023Modified: Jun 17, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 2.8 / Impact: 3.6

Source: NVD

Description

NATS nats-server before 2.9.23 and 2.10.x before 2.10.2 has an authentication bypass. An implicit $G 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. The earliest affected version is 2.2.0.

Affected (2)

Products: Linuxfoundation: Nats Server

Linuxfoundation

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Linuxfoundation Nats Server	From 2.10.0 to 2.10.2
Linuxfoundation Nats Server	From 2.2.0 to 2.9.23

Related CWEs

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 (6)

http://www.openwall.com/lists/oss-security/2023/10/30/1

Source: cve@mitre.org

Mailing List

https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23

Source: cve@mitre.org

Vendor Advisory

https://www.openwall.com/lists/oss-security/2023/10/13/2

Source: cve@mitre.org

Mailing ListMitigation

http://www.openwall.com/lists/oss-security/2023/10/30/1

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing List

https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://www.openwall.com/lists/oss-security/2023/10/13/2

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListMitigation

Timeline

No history available yet.