CVE-2015-7546

The identity service in OpenStack Identity (Keystone) before 2015.1.3 (Kilo) and 8.0.x before 8.0.2 (Liberty) and keystonemiddleware (formerly python-keystoneclient) before 1.5.4 (Kilo) and Liberty before 2.3.3 does not properly invalidate authorization tokens when using the PKI or PKIZ token providers, which allows remote authenticated users to bypass intended access restrictions and gain access to cloud resources by manipulating byte fields within a revoked token.

• CWE-522

• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlThird Party Advisory
• http://www.securityfocus.com/bid/80498Third Party Advisory, VDB Entry
• https://bugs.launchpad.net/keystone/+bug/1490804Issue Tracking, Third Party Advisory
• https://security.openstack.org/ossa/OSSA-2016-005.htmlPatch, Vendor Advisory
• https://wiki.openstack.org/wiki/OSSN/OSSN-0062Vendor Advisory
• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlThird Party Advisory
• http://www.securityfocus.com/bid/80498Third Party Advisory, VDB Entry
• https://bugs.launchpad.net/keystone/+bug/1490804Issue Tracking, Third Party Advisory
• https://security.openstack.org/ossa/OSSA-2016-005.htmlPatch, Vendor Advisory
• https://wiki.openstack.org/wiki/OSSN/OSSN-0062Vendor Advisory

Published

Feb 3, 2016

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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