A flaw was found in OpenStack Keystone. This vulnerability allows remote authenticated users to bypass intended authorization restrictions. This occurs because OpenStack Keystone does not properly handle EC2 (Elastic Compute Cloud) tokens when a user's role has been removed from a tenant. An attacker can leverage a token associated with a removed user role to gain unauthorized access.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 5.4 · red hatNVD modified 2026-10-30 18:03
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 17
- http://lists.fedoraproject.org/pipermail/package-announce/2012-December/094286.html
- http://rhn.redhat.com/errata/RHSA-2012-1556.html
- http://rhn.redhat.com/errata/RHSA-2012-1557.html
- http://secunia.com/advisories/51423
- http://secunia.com/advisories/51436
- http://www.openwall.com/lists/oss-security/2012/11/28/5
- http://www.openwall.com/lists/oss-security/2012/11/28/6
- http://www.securityfocus.com/bid/56726
- http://www.ubuntu.com/usn/USN-1641-1
- https://access.redhat.com/errata/RHSA-2012:1556 vendor-advisory, x_refsource_redhat
- https://access.redhat.com/errata/RHSA-2012:1557 vendor-advisory, x_refsource_redhat
- https://access.redhat.com/security/cve/CVE-2012-5571 vdb-entry, x_refsource_redhat
- https://bugs.launchpad.net/keystone/+bug/1064914
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80333
- https://github.com/openstack/keystone/commit/37308dd4f3e33f7bd0f71d83fd51734d1870713b
- https://github.com/openstack/keystone/commit/8735009dc5b895db265a1cd573f39f4acfca2a19
- https://github.com/openstack/keystone/commit/9d68b40cb9ea818c48152e6c712ff41586ad9653