{"id":"CVE-2013-4477","aliases":["GHSA-f889-wfwm-6p7m","PYSEC-2026-831"],"title":"OpenStack Identity Keystone Privilege Escalation vulnerability","summary":"OpenStack Identity Keystone Privilege Escalation vulnerability","severity":"low","vendor":"keystone","product":"keystone","ecosystem":"pip","affected":["keystone < 8.0.0a0"],"patched":["keystone 8.0.0a0"],"published":"2022-05-17","updated":"2026-07-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-f889-wfwm-6p7m","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4477"},{"url":"https://github.com/openstack/keystone/commit/b17e7bec768bd53d3977352486378698a3db3cfa"},{"url":"https://github.com/openstack/keystone/commit/c6800ca1ac984c879e75826df6694d6199444ea0"},{"url":"https://bugs.launchpad.net/keystone/+bug/1242855"},{"url":"https://github.com/openstack/keystone"},{"url":"http://rhn.redhat.com/errata/RHSA-2014-0113.html"},{"url":"http://www.openwall.com/lists/oss-security/2013/10/30/6"},{"url":"http://www.ubuntu.com/usn/USN-2034-1"}],"tags":["osv","pip"],"epss":0.00447,"epssPercentile":0.38162,"ingestedAt":"2026-07-08T18:25:48.836Z","slug":"CVE-2013-4477","body":"## Overview\n\nThe 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.\n\n## Affected packages\n\n- `keystone < 8.0.0a0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `keystone 8.0.0a0`","depth":"sunlit","depthScore":14,"depthScoreParts":{"impact":13.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}