Access Control Bypass in OpenStack Keystone Identity Service
CVE-2015-7546

7.5HIGH

Key Information:

Vendor: Openstack
Status: Keystonemiddleware
Vendor: CVE Published:; 3 February 2016

What is CVE-2015-7546?

The OpenStack Identity service (Keystone) contains a flaw that fails to properly invalidate authorization tokens when using the PKI or PKIZ token providers. This vulnerability allows authenticated users to bypass access restrictions and gain unauthorized access to cloud resources by exploiting manipulated byte fields within a revoked authorization token. Versions prior to 2015.1.3 and certain releases of Liberty and keystonemiddleware are susceptible to this issue, posing significant risks to cloud environments.