BIT-RABBITMQ-2026-67413 RabbitMQ: Authenticated RabbitMQ JMS Topic Selector Users Can Consume Broker CPU with an Unbounded LIKE Regular Expression

RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.23, 4.1.14, 4.2.9, and 4.3.3, the optional rabbitmqjmstopicexchange plugin's x-jms-topic exchange accepted a client-controlled rjmserlangselector binding expression whose LIKE evaluator expanded percent and underscore wildcards in...