{"id":"CVE-2013-4477","aliases":["GHSA-f889-wfwm-6p7m","PYSEC-2026-831"],"url":"https://o3.security/vulnerability/CVE-2013-4477","summary":"OpenStack Identity Keystone Privilege Escalation vulnerability","details":"The LDAP backend in OpenStack Identity (Keystone) Grizzly and Havana, when removing a role on a tenant for a user who does not have that role, adds the role to the user, which allows local users to gain privileges.","published":"2013-11-02T19:55:04Z","modified":"2026-07-07T11:56:26.840865610Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"keystone","fixedVersion":"8.0.0a0"}],"fix":{"url":"https://github.com/openstack/keystone/commit/b17e7bec768bd53d3977352486378698a3db3cfa","label":"openstack/keystone@b17e7be"},"references":[{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2014-0113.html"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-2034-1"},{"type":"EVIDENCE","url":"https://bugs.launchpad.net/keystone/+bug/1242855"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2013/10/30/6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4477"},{"type":"WEB","url":"https://github.com/openstack/keystone/commit/b17e7bec768bd53d3977352486378698a3db3cfa"},{"type":"WEB","url":"https://github.com/openstack/keystone/commit/c6800ca1ac984c879e75826df6694d6199444ea0"},{"type":"PACKAGE","url":"https://github.com/openstack/keystone"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-07T11:56:26.840865610Z"}}