{"id":"CVE-2012-5571","aliases":["GHSA-qvpr-qm6w-6rcc"],"url":"https://o3.security/vulnerability/CVE-2012-5571","summary":"OpenStack Keystone intended authorization restrictions bypass","details":"OpenStack Keystone Essex (2012.1) and Folsom (2012.2) does not properly handle EC2 tokens when the user role has been removed from a tenant, which allows remote authenticated users to bypass intended authorization restrictions by leveraging a token for the removed user role.","published":"2012-12-18T01:55:03Z","modified":"2026-04-10T03:44:20.264402Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"keystone","fixedVersion":"8.0.0a0"}],"fix":{"url":"https://github.com/openstack/keystone/commit/37308dd4f3e33f7bd0f71d83fd51734d1870713b","label":"openstack/keystone@37308dd"},"references":[{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2012-1556.html"},{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2012-1557.html"},{"type":"ADVISORY","url":"http://secunia.com/advisories/51423"},{"type":"ADVISORY","url":"http://secunia.com/advisories/51436"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-1641-1"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2012/11/28/5"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2012/11/28/6"},{"type":"FIX","url":"https://bugs.launchpad.net/keystone/+bug/1064914"},{"type":"FIX","url":"https://github.com/openstack/keystone/commit/37308dd4f3e33f7bd0f71d83fd51734d1870713b"},{"type":"FIX","url":"https://github.com/openstack/keystone/commit/8735009dc5b895db265a1cd573f39f4acfca2a19"},{"type":"FIX","url":"https://github.com/openstack/keystone/commit/9d68b40cb9ea818c48152e6c712ff41586ad9653"},{"type":"WEB","url":"http://lists.fedoraproject.org/pipermail/package-announce/2012-December/094286.html"},{"type":"WEB","url":"http://www.securityfocus.com/bid/56726"},{"type":"WEB","url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/80333"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-04-10T03:44:20.264402Z"}}