CVE-2026-67413

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 rabbitmq_jms_topic_exchange plugin's x-jms-topic exchange accepted a client-controlled rjms_erlang_selector binding expression whose LIKE evaluator expanded percent and underscore wildcards into overlapping PCRE fragments. It executed those fragments with raw re:run/3 without match or recursion limits, allowing an authenticated tenant that can bind and publish to consume broker scheduler CPU and deny service with pathological selectors. This issue is fixed in versions 4.0.23, 4.1.14, 4.2.9, and 4.3.3.

• CWE-1333

• https://github.com/rabbitmq/rabbitmq-server/commit/20203c50ea6ff459d462b2d4355326d3a870682c
• https://github.com/rabbitmq/rabbitmq-server/commit/60de2fbbcd812ab294985cef260cc2f1b1a02a5b
• https://github.com/rabbitmq/rabbitmq-server/commit/9e36b7f4c1e2eed77300288dca3e01bd9b23c432
• https://github.com/rabbitmq/rabbitmq-server/commit/f4d9da668b7304dfb9aeb2b4e9ff766a1275d021
• https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.9
• https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.3
• https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-chxf-3hfg-j8f7

Published

Sep 25, 2026

Last Modified

Sep 25, 2026

Status

Received

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-67408RabbitMQ is a messaging and streaming broker. From 4.1.0 unt…7.1
• CVE-2026-67409RabbitMQ is a messaging and streaming broker. From 3.13.0 un…8.2
• CVE-2026-6741The LatePoint – Calendar Booking Plugin for Appointments and…8.8
• CVE-2026-67410RabbitMQ is a messaging and streaming broker. From 4.2.0 unt…8.2
• CVE-2026-67411RabbitMQ is a messaging and streaming broker. From 3.13.0 un…6
• CVE-2026-67412RabbitMQ is a messaging and streaming broker. From 3.13.0 un…6
• CVE-2026-67415RabbitMQ is a messaging and streaming broker. From 4.2.0 unt…5.9
• CVE-2026-67419RabbitMQ is a messaging and streaming broker. Prior to 4.3.5…7.1
• CVE-2026-6742The Advanced iFrame plugin for WordPress is vulnerable to St…6.4
• CVE-2026-67420RabbitMQ is a messaging and streaming broker. From 3.13.0 un…2.3
• CVE-2026-67421RabbitMQ is a messaging and streaming broker. From 3.13.0 un…4.5
• CVE-2026-67422pymdown-extensions is a collection of extensions for the Pyt…7.5