GHSA-8m2x-3m6q-6w8j
NATS: Message tracing can be redirected to arbitrary subject
Quick fix
GHSA-8m2x-3m6q-6w8j — 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 supports telemetry on messages, using the per-message NATS headers.
### Problem Description
A valid client which uses message tracing headers can indicate that the trace messages can be sent to an arbitrary valid subject, including those to which the client does not have publish permission.
The payload is a valid trace message and not chosen by the attacker.
### 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
2.11.0Fixed in: 2.11.15go get github.com/nats-io/nats-server/v2@v2.11.152.12.0-preview.1Fixed in: 2.12.6go get github.com/nats-io/nats-server/v2@v2.12.6