CVE-2026-58251 | BDVDB-2026-346337 Detail
nats-ionats-server
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, 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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: network.
Weaknesses#
- CWE-285 Improper Authorization
References#
- https://github.com/nats-io/nats-server/security/advisories/GHSA-jx8g-9g95-6322
- https://github.com/nats-io/nats-server/commit/013586288078def45a6788096924eb4d150db65c
- https://github.com/nats-io/nats-server/commit/79c2f6e9ff87f594596337b6427dda85c38d1fe1
- https://github.com/nats-io/nats-server/commit/b9ffb63b85e7db3d25a13b2e234f5f7f7c13164d
- 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
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.