{"id":"CVE-2021-39234","aliases":["GHSA-c8cw-2c5j-xff3"],"url":"https://o3.security/vulnerability/CVE-2021-39234","summary":"Incorrect Authorization in Apache Ozone","details":"In Apache Ozone versions prior to 1.2.0, Authenticated users knowing the ID of an existing block can craft specific request allowing access those blocks, bypassing other security checks like ACL.","published":"2021-11-19T10:15:08.250Z","modified":"2026-07-09T05:44:52.070004Z","cvss":{"score":6.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"},"epss":{"score":0.01412,"percentile":0.71401,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.ozone:ozone-main","fixedVersion":"1.2.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/11/19/5"},{"type":"ADVISORY","url":"https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C97d65498-7f8c-366f-1bea-5a74b6378f0d%40apache.org%3E"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39234"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T05:44:52.070004Z"}}