Authentication flaw

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...

Authentication Bypass

github.com/nats-io/nats-server is vulnerable to Authentication Bypass. The vulnerability occurs when the only account added is the system account $SYS. In this scenario, the nats-server creates an implicit user in $G and designates it as the noauthuser account. This effectively enables the same...