CVE-2026-67405: Missing Origin Validation in WebSockets

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, Neither the Web-MQTT handler deps/rabbitmqwebmqtt/src/rabbitwebmqtthandler.erl:104 nor the Web-STOMP handler deps/rabbitmqwebstomp/src/rabbitwebstomphandler.erl:102 validates the Origin head...

CVE-2026-67232: Improper Handling of Highly Compressed Data (Data Amplification)

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, The cowboy WebSocket options at line 117 set compress = true, enabling RFC 7692 permessage-deflate negotiation. The handler does not set maxframesize, so cowboy's default of infinity applies...

CVE-2026-86065: Allocation of Resources Without Limits or Throttling

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /subscribe endpoint in network/api/websocket/routes.go accepts unauthenticated WebSocket clients with permissive origin handling, does not call SetReadLimit to bound message size, and has n...

CVE-2026-86064: Exposure of Sensitive Information to an Unauthorized Actor

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /log WebSocket route configured in config/node/api.yaml and registered by network/api/api.go does not require authentication. The first client message is parsed as a logger Profile in...

CVE-2026-50227: Missing Authentication for Critical Function

An unauthenticated local attacker can connect to the MQTT broker over its localhost WebSocket endpoint in Acer NitroSense software versions up to and including 5.2.62. This allows the attacker to invoke exposed ddsc RPC functions, including childprocess.execSync, resulting in arbitrary command...

PT-2026-97205

Name of the Vulnerable Software and Affected Versions Acer NitroSense versions prior to 5.2.63 Description An unauthenticated local attacker can connect to the MQTT broker via the localhost WebSocket endpoint. This access allows the invocation of exposed ddsc RPC functions, specifically the child...

PT-2026-97530

Name of the Vulnerable Software and Affected Versions Klever-Go versions prior to 1.7.20 Description The 'GET /subscribe' endpoint accepts unauthenticated WebSocket clients with permissive origin handling and lacks a live-connection cap or a call to SetReadLimit to bound message size. Additionall...

PT-2026-97587

Name of the Vulnerable Software and Affected Versions RabbitMQ versions prior to 3.13.15 RabbitMQ versions prior to 4.0.20 RabbitMQ versions prior to 4.1.11 RabbitMQ versions prior to 4.2.6 RabbitMQ versions prior to 4.3.0 Description The Web-MQTT handler and the Web-STOMP handler do not validate...

PT-2026-97584

Name of the Vulnerable Software and Affected Versions RabbitMQ versions prior to 3.13.15 RabbitMQ versions prior to 4.0.20 RabbitMQ versions prior to 4.1.11 RabbitMQ versions prior to 4.2.6 RabbitMQ versions prior to 4.3.0 Description An unauthenticated attacker can crash a node running the...

PT-2026-97529

Name of the Vulnerable Software and Affected Versions Klever-Go versions prior to 1.7.20 Description An unauthenticated remote client can connect to the default-open GET /log WebSocket endpoint. The server parses the first client message as a logger Profile and applies it process-wide using the...

PT-2026-105052

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, Neither the Web-MQTT handler deps/rabbitmq web mqtt/src/rabbit web mqtt handler.erl:104 nor the Web-STOMP handler deps/rabbitmq web stomp/src/rabbit web stomp handler.erl:102 validates the...

PT-2026-105063

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, The cowboy WebSocket options at line 117 set compress = true, enabling RFC 7692 permessage-deflate negotiation. The handler does not set max frame size, so cowboy's default of infinity...

CVE-2026-79677: Missing Release of Resource after Effective Lifetime

Missing release of resource after effective lifetime, Comparison using wrong factors vulnerability in Apache Tomcat allows a denial of service as a result of lost time outs for asynchronous WebSocket writes. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through...

CVE-2026-77791: Uncontrolled Resource Consumption

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack. This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121. The following versions were EOL at the time...

CVE-2026-87022: Improper Handling of Length Parameter Inconsistency

Improper handling of length parameter inconsistency vulnerability in Apache Tomcat allows WebSocket message smuggling when per-message-deflate is used. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121. The following...

CVE-2026-77791: Uncontrolled Resource Consumption

Uncontrolled Resource Consumption vulnerability in Apache Tomcat during sending of WebSocket close message enabled a DoS attack. This issue affects Apache Tomcat: from 11.0.0-M5 through 11.0.25, from 10.1.8 through 10.1.59, from 9.0.74 through 9.0.121. The following versions were EOL at the time...

CVE-2026-87022: Improper Handling of Length Parameter Inconsistency

Improper handling of length parameter inconsistency vulnerability in Apache Tomcat allows WebSocket message smuggling when per-message-deflate is used. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121. The following...

CVE-2026-79677: Missing Release of Resource after Effective Lifetime

Missing release of resource after effective lifetime, Comparison using wrong factors vulnerability in Apache Tomcat allows a denial of service as a result of lost time outs for asynchronous WebSocket writes. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through...

CVE-2026-76183: Authentication Bypass by Alternate Name

Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121. The following version...

CVE-2026-76183: Authentication Bypass by Alternate Name

Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121. The following version...