Security advisory

{
  "id": "5795732d99420dd13e16ef3d722d859fd270077c59a0f8a668f7e87aa08abe71",
  "url": "https://osv.dev/vulnerability/CVE-2021-44145",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-44145",
    "summary": "In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.",
    "evidence": "osv:CVE-2021-44145",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-44145",
      "aliases": [
        "BIT-nifi-2021-44145",
        "CVE-2021-44145",
        "GHSA-rq96-qhc5-vm4r"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/nifi",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2a756372fc7097ece6258c2af47b9a5f26384b02"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.1.0"
                      },
                      {
                        "fixed": "1.15.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "rel/nifi-1.15.0",
            "nifi-1.15.0-RC3",
            "rel/nifi-1.2.0",
            "nifi-1.2.0-RC2",
            "docker/nifi-1.2.0",
            "rel/nifi-1.1.0",
            "nifi-1.1.0-RC2",
            "nifi-0.6.0-RC2",
            "nifi-0.6.0",
            "nifi-0.4.1-RC1",
            "nifi-0.4.1",
            "nifi-0.2.0-incubating-RC1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44145.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:15.116809963Z",
      "provider": "osv",
      "references": [
        "https://nifi.apache.org/security.html#1.15.1-vulnerabilities"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-44145",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429105,
  "published_at": "2021-12-17T09:15:07.117+00:00"
}