Description
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, when no_auth_user was configured, a parser fast path intended for ordinary client connections could also apply to route or leafnode listeners, allowing an unauthenticated peer to bypass inter-server CONNECT authentication and operate with the privileges associated with that connection type. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
nats-io nats-server
< 2.11.16affected>= 2.12.0-preview.1, < 2.12.6affected
References
- https://github.com/nats-io/nats-server/security/advisories/GHSA-38x3-76xf-cq45 ↗
- https://github.com/nats-io/nats-server/commit/7b81dd455ea95960090a84858c7662827948d1b6 ↗
- https://github.com/nats-io/nats-server/commit/8b8e1ad4ceed32321e00d4fc6e76be05bc13bca6 ↗
- https://github.com/nats-io/nats-server/commit/b86147e81710a52b72a7f7275f91d69f723f5cb3 ↗
- https://github.com/nats-io/nats-server/releases/tag/v2.11.16 ↗
- https://github.com/nats-io/nats-server/releases/tag/v2.12.7 ↗
- https://github.com/nats-io/nats-server/releases/tag/v2.14.0 ↗