CVE-2026-57217

Summary

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.21, 4.1.11, and 4.2.6, RabbitMQ topic authorization can allow restricted topic writes and binds during metadata-store failures because topic-permission lookup errors from Khepri can collapse to undefined, which the internal backend treats as allow. This issue is fixed in versions 3.13.15, 4.0.21, 4.1.11, and 4.2.6.

Affected Software

VendorProductVersion RangeStatus
rabbitmqrabbitmq-server>= 4.2.0, < 4.2.6affected
rabbitmqrabbitmq-server>= 4.1.0, < 4.1.11affected
rabbitmqrabbitmq-server>= 4.0.0, < 4.0.21affected
rabbitmqrabbitmq-server>= 3.13.0, < 3.13.15affected

Weaknesses

  • CWE-863: CWE-863: Incorrect Authorization

References