Security advisory

{
  "id": "3f54078e6b880d3711515dad9dd773c97971508e2f98e6b53fecb9501093591e",
  "url": "https://osv.dev/vulnerability/CVE-2019-20790",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-20790",
    "summary": "OpenDMARC through 1.3.2 and 1.4.x, when used with pypolicyd-spf 2.0.2, allows attacks that bypass SPF and DMARC authentication in situations where the HELO field is inconsistent with the MAIL FROM field.",
    "evidence": "osv:CVE-2019-20790",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-20790",
      "aliases": [
        "CVE-2019-20790"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/trusteddomainproject/opendmarc",
              "type": "GIT",
              "events": [
                {
                  "introduced": "28c12f4e2b740a1556ccee0907b924e4c970759d"
                },
                {
                  "last_affected": "0d65077648569076c103b73f30ca86c14e1811a5"
                },
                {
                  "introduced": "a29adab78ea9b6625066fdc482eae0ec6aa19ca6"
                },
                {
                  "last_affected": "a29adab78ea9b6625066fdc482eae0ec6aa19ca6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:trusteddomain:opendmarc:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.3.0"
                      },
                      {
                        "last_affected": "1.3.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:trusteddomain:opendmarc:1.4.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.4.0"
                      },
                      {
                        "last_affected": "1.4.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.4.0",
            "rel-opendmarc-1-4-0",
            "rel-opendmarc-1-3-2",
            "rel-opendmarc-1-3-1",
            "rel-opendmarc-1-3-1-Beta1",
            "rel-opendmarc-1-3-1-Beta0",
            "rel-opendmarc-1-3-0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20790.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:37.425952278Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/",
        "https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf",
        "https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816",
        "https://sourceforge.net/p/opendmarc/tickets/235/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "33"
                  },
                  {
                    "last_affected": "33"
                  },
                  {
                    "introduced": "34"
                  },
                  {
                    "last_affected": "34"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:pypolicyd-spf_project:pypolicyd-spf:2.0.2:*:*:*:*:*:*:*"
            ],
            "vendor_product": "pypolicyd-spf_project:pypolicyd-spf",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.0.2"
                  },
                  {
                    "last_affected": "2.0.2"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-20790",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434222,
  "published_at": "2020-04-27T14:15:11.127+00:00"
}