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CVE-2026-67421BIT-RABBITMQ-2026-67421GHSA-6256-27FM-4RGR

RabbitMQ: Stored HTML Injection in RabbitMQ Management OAuth Error Handling

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.13.19, 4.0.24, 4.1.15, 4.2.10, 4.3.5
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: partial

Summary

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, RabbitMQ Management rendered an AMQP authorization-error reason containing an attacker-controlled queue name as HTML when the OAuth management UI was enabled. Exploitation requires an attacker with queue configure permission, a management administrator who can see but cannot read that queue, and the administrator clicking Get Message(s). A queue name containing a base element can then retarget the automatic relative refresh because the Content Security Policy omits base-uri and connect-src, and an attacker endpoint that permits the management origin through CORS can receive the victim's Authorization header. This issue is fixed in versions 3.13.19, 4.0.24, 4.1.15, 4.2.10, and 4.3.5.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • rabbitmq rabbitmq-server

    From 3.13.0 · fixed in 3.13.19; From 4.0.0 · fixed in 4.0.24; From 4.1.0 · fixed in 4.1.15; From 4.2.0 · fixed in 4.2.10; From 4.3.0 · fixed in 4.3.5

  • rabbitmqBitnami

    From 3.13.0 · fixed in 3.13.19; From 4.0.0 · fixed in 4.0.24; From 4.1.0 · fixed in 4.1.15; From 4.2.0 · fixed in 4.2.10; From 4.3.0 · fixed in 4.3.5

References 3

GitHub · rabbitmq/rabbitmq-server