SUSE CVE-2026-58251

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...

SUSE CVE-2026-58252

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 could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset...

BIT-NATS-2026-58252 NATS Server: Subscribe Authz Bypass via Wildcard-Overlap

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 could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset...

PT-2026-58920

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...

PT-2026-58921

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 could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset...

CVE-2026-58252

A flaw was found in NATS Server. An authenticated user could bypass configured access restrictions and receive messages on subjects that were explicitly denied. This occurs when a wildcard subscription overlaps with a wildcard deny rule but is not a direct subset, or when queue subscriptions...

CVE-2026-58251

A flaw was found in NATS Server, a high-performance messaging system. An authenticated user with specific permissions could bypass security rules designed to deny access to certain message subjects. This bypass occurs when a queue subscription is used, allowing the user to access information that...

Improper Authorization

Overview github.com/nats-io/nats-server/server is an A simple, secure and performant communications system for digital systems, services and devices. Affected versions of this package are vulnerable to Improper Authorization via the queue subscription process. An attacker can gain unauthorized...

Improper Authorization

Overview github.com/nats-io/nats-server/v2/server is an A simple, secure and performant communications system for digital systems, services and devices. Affected versions of this package are vulnerable to Improper Authorization via the queue subscription process. An attacker can gain unauthorized...

CVE-2026-58252

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 could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset...

CVE-2026-58252 NATS Server: Subscribe Authz Bypass via Wildcard-Overlap

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 could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset...

CVE-2026-58252

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 could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset...

CVE-2026-58252

CVE-2026-58252 affects NATS Server prior to versions 2.14.0, 2.12.7, and 2.11.16. An authenticated user could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset of it; queue subscriptions could also affect delivery...

CVE-2026-58252 NATS Server: Subscribe Authz Bypass via Wildcard-Overlap

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 could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset...

PT-2026-56564

Name of the Vulnerable Software and Affected Versions NATS Server versions prior to 2.14.0 NATS Server versions prior to 2.12.7 NATS Server versions prior to 2.11.16 Description An authenticated user can receive messages on denied subjects. This occurs when a wildcard subscription overlaps with a...

PT-2026-56537

Name of the Vulnerable Software and Affected Versions NATS Server versions prior to 2.14.0 NATS Server versions prior to 2.12.7 NATS Server versions prior to 2.11.16 Description An authenticated user with subscription deny permissions can bypass a plain subject deny rule by utilizing a queue...