Security advisory

{
  "id": "564db5ba549702a83db944b7beaa85f4a952dba3dd399e44d034c3ef35391a96",
  "url": "https://osv.dev/vulnerability/CVE-2021-39234",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-39234",
    "summary": "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.",
    "evidence": "osv:CVE-2021-39234",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-39234",
      "aliases": [
        "CVE-2021-39234",
        "GHSA-c8cw-2c5j-xff3"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/ozone",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9ee6f1872dca8469057d3c7bf880931c0e7b7f3e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:ozone:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.2.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "ozone-1.2.0-RC0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39234.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:00.796032835Z",
      "provider": "osv",
      "references": [
        "https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C97d65498-7f8c-366f-1bea-5a74b6378f0d%40apache.org%3E"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-39234",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 439625,
  "published_at": "2021-11-19T10:15:08.25+00:00"
}