Security advisory

{
  "id": "da14adf068e6840f4e0a1a845213d99a8b0aadb1ca3d8d1bab7b88b5b1493a40",
  "url": "https://osv.dev/vulnerability/CVE-2021-27576",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-27576",
    "summary": "If was found that the NetTest web service can be used to overload the bandwidth of a Apache OpenMeetings server. This issue was addressed in Apache OpenMeetings 6.0.0",
    "evidence": "osv:CVE-2021-27576",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-27576",
      "aliases": [
        "CVE-2021-27576",
        "GHSA-px9f-597f-wmcf"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/openmeetings",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f6b537c3561ed7af3a9fe864fd6e94b6245e9426"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:openmeetings:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "6.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27576.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:44.976083335Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/r9bb615bd70a0197368f5f3ffc887162686caeb0b5fc30592a7a871e9%40%3Cuser.openmeetings.apache.org%3E"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-27576",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 436013,
  "published_at": "2021-03-15T09:15:12.047+00:00"
}