GHSA-jxxm-27vp-c3m5
NATS allows MQTT clients to bypass ACL checks
Quick fix
GHSA-jxxm-27vp-c3m5 — github.com/nats-io/nats-server/v2: upgrade to the fixed version with the command below.
go get github.com/nats-io/nats-server/v2@v2.11.15Details
### Background
NATS.io is a high performance open source pub-sub distributed communication technology, built for the cloud, on-premise, IoT, and edge computing.
The nats-server provides an MQTT client interface.
### Problem Description
When using ACLs on message subjects, these ACLs were not applied in the `$MQTT.>` namespace, allowing MQTT clients to bypass ACL checks for MQTT subjects.
### Affected Versions
Any version before v2.12.6 or v2.11.15
### Workarounds
None.
Are you affected?
Enter the version of the package you're using.
Affected packages
0Fixed in: 2.11.15go get github.com/nats-io/nats-server/v2@v2.11.152.12.0-RC.1Fixed in: 2.12.6go get github.com/nats-io/nats-server/v2@v2.12.60No fixed version published yet for github.com/nats-io/nats-server (go modules). Pin to a known-safe version or switch to an alternative.