CVE-2014-9494
RabbitMQ before 3.4.0 allows remote attackers to bypass the loopback_users restriction via a crafted X-Forwareded-For header.
Date published : 2015-01-20
http://www.rabbitmq.com/release-notes/README-3.4.0.txt
https://groups.google.com/forum/#%21topic/rabbitmq-users/DMkypbSvIyM