The ReST API in OpenStack Orchestration API (Heat) before Havana 2013.2.1 and Icehouse before icehouse-2 allows remote authenticated users to bypass the tenant scoping restrictions via a modified tenant_id in the request path.
Category : Permissions, Privileges, and Access Controls Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.