{"id":"CVE-2020-12689","aliases":["GHSA-chgw-36xv-47cw","PYSEC-2020-53"],"url":"https://o3.security/vulnerability/CVE-2020-12689","summary":"OpenStack Keystone EC2 and/or credential endpoints are not protected from a scoped context ","details":"An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any user authenticated within a limited scope (trust/oauth/application credential) can create an EC2 credential with an escalated permission, such as obtaining admin while the user is on a limited viewer role. 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.","published":"2020-05-07T00:15:10.877Z","modified":"2026-07-08T05:55:41.380687268Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"keystone","fixedVersion":"15.0.1"},{"ecosystem":"PyPI","name":"keystone","fixedVersion":"16.0.1"}],"fix":null,"references":[{"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://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/1872735"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:55:41.380687268Z"}}