{"id":"CVE-2021-39236","aliases":["GHSA-5993-wwpg-m92c"],"url":"https://o3.security/vulnerability/CVE-2021-39236","summary":"Apache Ozone user impersonation due to non-validation of Ozone S3 tokens","details":"In Apache Ozone before 1.2.0, Authenticated users with valid Ozone S3 credentials can create specific OM requests, impersonating any other user.","published":"2021-11-19T10:15:08.347Z","modified":"2026-07-09T05:44:51.769782Z","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":{"score":0.02503,"percentile":0.83406,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.hadoop:hadoop-ozone-ozone-manager","fixedVersion":"1.2.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/11/19/7"},{"type":"ADVISORY","url":"https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C0fd74baa-88a0-39a2-8f3a-b982acb25d5a%40apache.org%3E"},{"type":"EVIDENCE","url":"https://issues.apache.org/jira/browse/HDDS-4763"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T05:44:51.769782Z"}}