{"cve":"CVE-2021-39236","nvd":{"published":"2021-11-19T10:15:08.347","modified":"2026-06-17T04:03:22.447","status":"Modified","description":"In Apache Ozone before 1.2.0, Authenticated users with valid Ozone S3 credentials can create specific OM requests, impersonating any other user.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-862"],"references":["http://www.openwall.com/lists/oss-security/2021/11/19/7","https://issues.apache.org/jira/browse/HDDS-4763","https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C0fd74baa-88a0-39a2-8f3a-b982acb25d5a%40apache.org%3E","http://www.openwall.com/lists/oss-security/2021/11/19/7","https://issues.apache.org/jira/browse/HDDS-4763"],"products":["apache:ozone"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-39236","score":0.02636,"percentile":0.85558,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-5993-wwpg-m92c","url":"https://osv.dev/vulnerability/GHSA-5993-wwpg-m92c","summary":"Apache Ozone user impersonation due to non-validation of Ozone S3 tokens","modified":"2024-02-16T08:23:18.558163Z","packages":[{"ecosystem":"Maven","name":"org.apache.hadoop:hadoop-ozone-ozone-manager","purl":"pkg:maven/org.apache.hadoop/hadoop-ozone-ozone-manager","ranges":["<1.2.0"],"fixed":["1.2.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}