{"cve":"CVE-2021-39234","nvd":{"published":"2021-11-19T10:15:08.250","modified":"2026-06-17T04:03:22.223","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","score":6.8},"cwes":["CWE-863","CWE-20"],"references":["http://www.openwall.com/lists/oss-security/2021/11/19/5","https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C97d65498-7f8c-366f-1bea-5a74b6378f0d%40apache.org%3E","http://www.openwall.com/lists/oss-security/2021/11/19/5","https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C97d65498-7f8c-366f-1bea-5a74b6378f0d%40apache.org%3E"],"products":["apache:ozone"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-39234","score":0.01412,"percentile":0.72705,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-c8cw-2c5j-xff3","url":"https://osv.dev/vulnerability/GHSA-c8cw-2c5j-xff3","summary":"Incorrect Authorization in Apache Ozone","modified":"2023-11-08T04:06:34.717870Z","packages":[{"ecosystem":"Maven","name":"org.apache.ozone:ozone-main","purl":"pkg:maven/org.apache.ozone/ozone-main","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."]}