BIT-RABBITMQ-2026-67418 RabbitMQ MQTT 5: inapplicable PUBLISH property disconnects matching subscribers

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

SUSE CVE-2026-67418

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

Linux Distros Unpatched Vulnerability : CVE-2026-67418

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in...

UBUNTU-CVE-2026-67418

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

CVE-2026-67418

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

AZL-108480 CVE-2026-67418 affecting package rabbitmq-server 3.13.7-9

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

DEBIAN-CVE-2026-67418

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

CVE-2026-67418

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

CVE-2026-67418 RabbitMQ MQTT 5: inapplicable PUBLISH property disconnects matching subscribers

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

CVE-2026-67418 RabbitMQ MQTT 5: inapplicable PUBLISH property disconnects matching subscribers

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

CVE-2026-67418

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

EUVD-2026-101419

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

CVE-2026-67418

The RabbitMQ messaging broker contains a vulnerability in the MQTT 5 parser (specifically deps/rabbitmq_mqtt/src/rabbit_mqtt_packet.erl) affecting versions 3.13.0 to 3.13.18 , 4.0.23 , 4.1.14 , 4.2.9 , and 4.3.4 . The parser incorrectly accepts the Request-Problem-Information property on PUBLISH ...

CVE-2026-67418

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

CVE-2026-67418 RabbitMQ MQTT 5: inapplicable PUBLISH property disconnects matching subscribers

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

CVE-2026-67418: Improper Validation of Syntactic Correctness of Input

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmqmqtt/src/rabbitmqttpacket.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticated...

PT-2026-114248

Name of the Vulnerable Software and Affected Versions RabbitMQ versions 3.13.0 through 3.13.18 RabbitMQ versions 4.0.0 through 4.0.23 RabbitMQ versions 4.1.0 through 4.1.14 RabbitMQ versions 4.2.0 through 4.2.9 RabbitMQ versions 4.3.0 through 4.3.4 Description The MQTT 5 parser in deps/rabbitmq...

PT-2026-122684

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5, the MQTT 5 parser in deps/rabbitmq mqtt/src/rabbit mqtt packet.erl accepts Request-Problem-Information on PUBLISH packets even though the property is valid only for CONNECT. An authenticate...

netty: io.netty/netty-codec-mqtt: Netty: Denial of Service due to excessive resource consumption from crafted MQTT 5 header

A flaw was found in Netty, an asynchronous event-driven network application framework. A remote attacker can exploit this vulnerability by sending a crafted MQTT 5 header with an oversized Properties section. This causes Netty to repeatedly parse and buffer the large Properties section in memory...

netty: io.netty/netty-codec-mqtt: Netty: Denial of Service due to excessive resource consumption from crafted MQTT 5 header

A flaw was found in Netty, an asynchronous event-driven network application framework. A remote attacker can exploit this vulnerability by sending a crafted MQTT 5 header with an oversized Properties section. This causes Netty to repeatedly parse and buffer the large Properties section in memory...