CVE-2026-57214

RabbitMQ is a messaging and streaming broker. Prior to 4.2.5, the RabbitMQ management UI renders the x-internal-purpose queue or exchange argument into an HTML title attribute without proper escaping on the Queues and Exchanges pages, allowing a user with permission to declare a queue or exchange to execute JavaScript in another user's browser. This issue is fixed in version 4.2.5.

• CWE-79

• https://github.com/rabbitmq/rabbitmq-server/commit/b0027b6c1ae5b869d876e211efe6189ffd92b5c2Patch
• https://github.com/rabbitmq/rabbitmq-server/commit/b267a290dd89e42c6e0256f46fc273a8adb7f3ecPatch
• https://github.com/rabbitmq/rabbitmq-server/pull/15606Issue Tracking, Patch
• https://github.com/rabbitmq/rabbitmq-server/pull/15608Issue Tracking, Patch
• https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.5Release Notes
• https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-6jfq-prw2-7rwpVendor Advisory
• https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-6jfq-prw2-7rwpVendor Advisory

Published

Jul 10, 2026

Last Modified

Jul 13, 2026

Status

Analyzed

• 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.
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