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CVE PROGRAM SOURCE RECORD4.5 Medium

CVE-2026-67421

RabbitMQ: Stored HTML Injection in RabbitMQ Management OAuth Error Handling

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

rabbitmq rabbitmq-server

  • >= 3.13.0, < 3.13.19affected
  • >= 4.0.0, < 4.0.24affected
  • >= 4.1.0, < 4.1.15affected
  • >= 4.2.0, < 4.2.10affected
  • >= 4.3.0, < 4.3.5affected

References