{"id":"CVE-2020-12691","details":"An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any authenticated user can create an EC2 credential for themselves for a project that they have a specified role on, and then perform an update to the credential user and project, allowing them to masquerade as another user. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin privileges.","aliases":["GHSA-4427-7f3w-mqv6","PYSEC-2020-55"],"modified":"2026-02-19T07:27:04.826884Z","published":"2020-05-07T00:15:10.957Z","references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa%40%3Ccommits.druid.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2%40%3Ccommits.druid.apache.org%3E"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2020/05/07/2"},{"type":"ADVISORY","url":"https://bugs.launchpad.net/keystone/+bug/1872733"},{"type":"ADVISORY","url":"https://security.openstack.org/ossa/OSSA-2020-004.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4480-1/"},{"type":"ADVISORY","url":"https://www.openwall.com/lists/oss-security/2020/05/06/5"},{"type":"FIX","url":"https://bugs.launchpad.net/keystone/+bug/1872733"},{"type":"ARTICLE","url":"http://www.openwall.com/lists/oss-security/2020/05/07/2"},{"type":"ARTICLE","url":"https://www.openwall.com/lists/oss-security/2020/05/06/5"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openstack/keystone","events":[{"introduced":"0"},{"fixed":"95b2bbeab113d9f04d1c81f7f1b48bf692bce979"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-12691.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}