CRE-2025-0063

RabbitMQ disk monitor fails to initializeMedium

Impact: 6/10

Mitigation: 3/10

CRE-2025-0063View on GitHub

RabbitMQDisk MonitorMonitoringPlugin

Description

• RabbitMQ's disk monitor process cannot start or retrieve free‐space metrics, preventing it from detecting low‐disk conditions.

Cause

• The disk monitoring plugin fails to initialize, often due to missing permissions, misconfigured file paths, or an unsupported operating system environment.

Mitigation

• Ensure the RabbitMQ process has read access to the directories it must monitor (e.g., the data and log file paths).
• Verify that the `disk_free_limit` and related configuration keys are correctly set in `rabbitmq.conf`.
• Upgrade to a RabbitMQ version where disk‑monitor initialization issues are fixed.

References

• https://www.rabbitmq.com/alarms.html
• https://groups.google.com/g/rabbitmq-users/c/1IIUetvreos