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, an authenticated user with subscription deny permissions could bypass a plain subject deny rule by using a queue subscription, because queue-specific deny evaluation could override the plain subject deny result when the queue name itself was not denied. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://github.com/nats-io/nats-server/commit/013586288078def45a6788096924eb4d150db65c Patch
- https://github.com/nats-io/nats-server/commit/79c2f6e9ff87f594596337b6427dda85c38d1fe1 Patch
- https://github.com/nats-io/nats-server/commit/b9ffb63b85e7db3d25a13b2e234f5f7f7c13164d Patch
- https://github.com/nats-io/nats-server/security/advisories/GHSA-jx8g-9g95-6322 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.5 · linuxfoundationNVD modified 2026-10-25 17:10
Affected (CPE criteria) 1
cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*
References 7
- https://github.com/nats-io/nats-server/commit/013586288078def45a6788096924eb4d150db65c Patch
- https://github.com/nats-io/nats-server/commit/79c2f6e9ff87f594596337b6427dda85c38d1fe1 Patch
- https://github.com/nats-io/nats-server/commit/b9ffb63b85e7db3d25a13b2e234f5f7f7c13164d Patch
- https://github.com/nats-io/nats-server/releases/tag/v2.11.16 Release Notes
- https://github.com/nats-io/nats-server/releases/tag/v2.12.7 Release Notes
- https://github.com/nats-io/nats-server/releases/tag/v2.14.0 Release Notes
- https://github.com/nats-io/nats-server/security/advisories/GHSA-jx8g-9g95-6322 Vendor Advisory