VULNERABILITY INTELLIGENCE

CVE-2023-47090

CVSS score6.5 MEDIUM

EPSS probability0.83%

CISA KEVNot currently listed

Published2023-10-30

Last modified2026-06-17

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.