In Apache Allura before 1.8.0, unauthenticated attackers may retrieve arbitrary files through the Allura web application

In Apache Allura before 1.8.0, unauthenticated attackers may retrieve arbitrary files through the Allura web application. Some webservers used with Allura, such as Nginx, Apache/mod_wsgi or paster may prevent the attack from succeeding. Others, such as gunicorn do not prevent it and leave Allura vulnerable.