Nats-Server 安全漏洞

Nats-Server is a high-performance server developed by Nats Open Source, used for native message delivery systems on Nats.io, cloud, and edge environments. There were security vulnerabilities in versions of Nats-Server prior to 2.11.15 and 2.12.5. These vulnerabilities stemmed from improper handli...

PT-2026-27620

Name of the Vulnerable Software and Affected Versions NATS-Server versions prior to 2.11.15 NATS-Server versions prior to 2.12.6 Description NATS-Server is a high-performance server for NATS.io, a cloud and edge native messaging system. If a nats-server is run with static credentials for all...

PT-2026-27618

Name of the Vulnerable Software and Affected Versions NATS-Server versions prior to 2.11.15 NATS-Server versions prior to 2.12.6 Description NATS-Server, a high-performance server for NATS.io, a cloud and edge native messaging system, contains an issue where the Nats-Request-Info: message header...

PT-2026-27614

Name of the Vulnerable Software and Affected Versions NATS-Server versions prior to 2.11.15 NATS-Server versions prior to 2.12.6 Description NATS-Server is a high-performance server for NATS.io, a cloud and edge native messaging system. When using Access Control Lists ACLs on message subjects,...

PT-2026-27622

Name of the Vulnerable Software and Affected Versions NATS-Server versions prior to 2.11.15 NATS-Server versions prior to 2.12.6 Description NATS-Server, a high-performance server for NATS.io, is affected by an issue where a valid client utilizing message tracing headers can direct trace messages...

CVE-2026-33215: Improper Authentication

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The nats-server provides an MQTT client interface. Prior to versions 2.11.15 and 2.12.5, Sessions and Messages can by hijacked via MQTT Client ID malfeasance. Versions 2.11.15 and 2.12.5 patch the issu...

PT-2026-27615

Name of the Vulnerable Software and Affected Versions NATS-Server versions prior to 2.11.15 NATS-Server versions prior to 2.12.6 Description NATS-Server is a high-performance server for NATS.io, a cloud and edge native messaging system. A client connected to the leafnode port can crash the server...

PT-2026-27519

Name of the Vulnerable Software and Affected Versions NATS-Server versions prior to 2.11.15 NATS-Server versions prior to 2.12.6 Description NATS-Server, a high-performance server for NATS.io, a cloud and edge native messaging system, contains a flaw where sessions and messages can be hijacked vi...

PT-2026-27621

Name of the Vulnerable Software and Affected Versions NATS-Server versions prior to 2.11.15 NATS-Server versions prior to 2.12.6 Description NATS-Server, a high-performance server for NATS.io, a cloud and edge native messaging system, has an issue where, when using mTLS for client identity with...

PT-2026-27613

Name of the Vulnerable Software and Affected Versions NATS-Server versions prior to 2.11.15 NATS-Server versions prior to 2.12.6 Description NATS-Server, a high-performance server for NATS.io, a cloud and edge native messaging system, contains an issue where MQTT passwords are incorrectly...

SUSE CVE-2026-27571

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The WebSockets handling of NATS messages handles compressed messages via the WebSockets negotiated compression. Prior to versions 2.11.2 and 2.12.3, the implementation bound the memory size of a NATS...

BIT-NATS-2026-27571 nats-server websockets are vulnerable to pre-auth memory DoS

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The WebSockets handling of NATS messages handles compressed messages via the WebSockets negotiated compression. Prior to versions 2.11.2 and 2.12.3, the implementation bound the memory size of a NATS...

nats-server websockets are vulnerable to pre-auth memory DoS

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GO-2026-4533 nats-server websockets are vulnerable to pre-auth memory DoS in github.com/nats-io/nats-server

nats-server websockets are vulnerable to pre-auth memory DoS in github.com/nats-io/nats-server...

Linux Distros Unpatched Vulnerability : CVE-2026-27571

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The WebSockets handling of NATS messages handles compressed...

CVE-2026-27571

A flaw was found in nats-server. The WebSockets implementation fails to enforce a memory allocation limit during the decompression of WebSocket messages. A malicious compressed payload allows an attacker to cause an excessive memory consumption, eventually resulting in a server crash and a comple...

AZL-78374 CVE-2026-27571 affecting package telegraf for versions less than 1.31.0-15

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The WebSockets handling of NATS messages handles compressed messages via the WebSockets negotiated compression. Prior to versions 2.11.2 and 2.12.3, the implementation bound the memory size of a NATS...

AZL-78372 CVE-2026-27571 affecting package telegraf for versions less than 1.29.4-21

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The WebSockets handling of NATS messages handles compressed messages via the WebSockets negotiated compression. Prior to versions 2.11.2 and 2.12.3, the implementation bound the memory size of a NATS...

CVE-2026-27571

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The WebSockets handling of NATS messages handles compressed messages via the WebSockets negotiated compression. Prior to versions 2.11.2 and 2.12.3, the implementation bound the memory size of a NATS...

GHSA-QRVQ-68C2-7GRW nats-server websockets are vulnerable to pre-auth memory DoS

Impact The WebSockets handling of NATS messages handles compressed messages via the WebSockets negotiated compression. The implementation bound the memory size of a NATS message but did not independently bound the memory consumption of the memory stream when constructing a NATS message which migh...