OpenStack Compute (Nova) Essex before 2011.3 allows remote authenticated users to cause a denial of service (Nova-API log file and disk consumption) via a long server name.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-4791
https://bugs.launchpad.net/nova/+bug/962515
http://osdir.com/ml/openstack-cloud-computing/2012-03/msg01133.html