PYSEC-2026-652 OpenStack Keystone allows context-dependent attackers to bypass access restrictions

OpenStack Keystone Grizzly before 2013.1, Folsom 2012.1.3 and earlier, and Essex does not properly check if the 1 user, 2 tenant, or 3 domain is enabled when using EC2-style authentication, which allows context-dependent attackers to bypass access restrictions...