Security advisory

{
  "id": "901f7975e2fe8ca2520237ad83c4ee8b88ed70814a317ea7188ad9679c70935d",
  "url": "https://osv.dev/vulnerability/CVE-2020-28247",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-28247",
    "summary": "The lettre library through 0.10.0-alpha for Rust allows arbitrary sendmail option injection via transport/sendmail/mod.rs.",
    "evidence": "osv:CVE-2020-28247",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-28247",
      "aliases": [
        "CVE-2020-28247",
        "GHSA-vc2p-r46x-m3vx",
        "RUSTSEC-2020-0069"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/lettre/lettre",
              "type": "GIT",
              "events": [
                {
                  "introduced": "91a17ae2816942b20469b5f8f60daa4614cdaea1"
                },
                {
                  "last_affected": "9dadc4d6ebdf42baca9449313c12a1713b24c1c4"
                },
                {
                  "introduced": "101189882a7982a52d9ba86d2e873b147fac7cb4"
                },
                {
                  "last_affected": "d930c42d5069e344a9dfa84ebe4b60bf3b11ac64"
                },
                {
                  "introduced": "0d3988d49935a047ed430a97c7bceeca9d2c346c"
                },
                {
                  "last_affected": "0d3988d49935a047ed430a97c7bceeca9d2c346c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:lettre:lettre:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.8.0"
                      },
                      {
                        "last_affected": "0.8.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:lettre:lettre:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.9.0"
                      },
                      {
                        "last_affected": "0.9.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:lettre:lettre:0.7.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.7.0"
                      },
                      {
                        "last_affected": "0.7.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.7.0",
            "v0.9.5",
            "v0.7.0",
            "v0.8.3",
            "v0.9.4",
            "v0.9.3",
            "v0.9.2",
            "v0.9.1",
            "v0.9.0",
            "v0.8.2",
            "v0.8.1",
            "v0.8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-28247.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:03.994554102Z",
      "provider": "osv",
      "references": [
        "https://rustsec.org/advisories/RUSTSEC-2020-0069.html",
        "https://github.com/RustSec/advisory-db/pull/478/files",
        "https://github.com/lettre/lettre"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:lettre:lettre:0.10.0:alpha1:*:*:*:*:*:*",
              "cpe:2.3:a:lettre:lettre:0.10.0:alpha2:*:*:*:*:*:*",
              "cpe:2.3:a:lettre:lettre:0.10.0:alpha3:*:*:*:*:*:*"
            ],
            "vendor_product": "lettre:lettre",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0.10.0-alpha1"
                  },
                  {
                    "last_affected": "0.10.0-alpha1"
                  },
                  {
                    "introduced": "0.10.0-alpha2"
                  },
                  {
                    "last_affected": "0.10.0-alpha2"
                  },
                  {
                    "introduced": "0.10.0-alpha3"
                  },
                  {
                    "last_affected": "0.10.0-alpha3"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-28247",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384171,
  "published_at": "2020-11-12T18:15:15.737+00:00"
}