{"id":"PYSEC-2026-831","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.","aliases":["CVE-2013-4477","GHSA-f889-wfwm-6p7m"],"modified":"2026-07-07T11:45:41.932348410Z","published":"2026-07-06T08:03:26.596620Z","references":[{"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":"WEB","url":"https://bugs.launchpad.net/keystone/+bug/1242855"},{"type":"PACKAGE","url":"https://github.com/openstack/keystone"},{"type":"WEB","url":"http://rhn.redhat.com/errata/RHSA-2014-0113.html"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2013/10/30/6"},{"type":"WEB","url":"http://www.ubuntu.com/usn/USN-2034-1"},{"type":"PACKAGE","url":"https://pypi.org/project/keystone"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-f889-wfwm-6p7m"}],"affected":[{"package":{"name":"keystone","ecosystem":"PyPI","purl":"pkg:pypi/keystone"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.0a0"}]}],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/keystone/PYSEC-2026-831.yaml"}}],"schema_version":"1.7.5"}