Security advisory

{
  "id": "af7396f81b69949e8861178e0ad709de65d89f8f4b10cc39bee7cf4bf3a0ea20",
  "url": "https://osv.dev/vulnerability/CVE-2021-21289",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-21289",
    "summary": "Mechanize is an open-source ruby library that makes automated web interaction easy. In Mechanize from version 2.0.0 and before version 2.7.7 there is a command injection vulnerability. Affected versions of mechanize allow for OS commands to be injected using several classes' methods which implicitly use Ruby's Kernel.open method. Exploitation is possible only if untrusted input is used as a local filename and passed to any of these calls: Mechanize::CookieJar#load, Mechanize::CookieJar#save_as, Mechanize#download, Mechanize::Download#save, Mechanize::File#save, and Mechanize::FileResponse#read_body. This is fixed in version 2.7.7.",
    "evidence": "osv:CVE-2021-21289",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-21289",
      "aliases": [
        "CVE-2021-21289",
        "GHSA-qrqm-fpv6-6r8g"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/sparklemotion/mechanize",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4cf254f24feab5bc8b5195972b984ca45d9c9503"
                },
                {
                  "fixed": "3044b4eb6cadc2f0bb7b386b674659de50c0dcfc"
                },
                {
                  "fixed": "66a6a1bfa653a5f13274a396a5e5441238656aa0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mechanize_project:mechanize:*:*:*:*:*:ruby:*:*",
                    "range": [
                      {
                        "introduced": "2.0"
                      },
                      {
                        "fixed": "2.7.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "66a6a1bfa653a5f13274a396a5e5441238656aa0"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3044b4eb6cadc2f0bb7b386b674659de50c0dcfc"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.7.7"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.7.6",
            "v2.7.5",
            "v2.7.4",
            "v2.7.4.beta3",
            "v2.7.4.beta2",
            "v2.7.4.beta1",
            "v2.7.3",
            "v2.7.2",
            "v2.7.1",
            "v2.7.0",
            "v2.6.0",
            "v2.5.1",
            "v2.5",
            "v2.4",
            "v2.3",
            "v2.2.1",
            "v2.2",
            "v2.1.1",
            "v2.1",
            "v2.1.pre.1",
            "v2.0.1",
            "v2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21289.json"
          }
        }
      ],
      "modified": "2026-10-24T10:48:38.213398164Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBVVJUL4P4KCJH4IQTHFZ4ATXY7XXZPV/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YNFZ7ROYS6V4J5L5PRAJUG2AWC7VXR2V/",
        "https://github.com/sparklemotion/mechanize/releases/tag/v2.7.7",
        "https://github.com/sparklemotion/mechanize/security/advisories/GHSA-qrqm-fpv6-6r8g",
        "https://lists.debian.org/debian-lts-announce/2021/02/msg00021.html",
        "https://rubygems.org/gems/mechanize/",
        "https://security.gentoo.org/glsa/202107-17",
        "https://github.com/sparklemotion/mechanize/commit/66a6a1bfa653a5f13274a396a5e5441238656aa0"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:mechanize_project:mechanize:*:*:*:*:*:ruby:*:*"
            ],
            "vendor_product": "mechanize_project:mechanize",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.0"
                  },
                  {
                    "fixed": "2.7.7"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "32"
                  },
                  {
                    "last_affected": "32"
                  },
                  {
                    "introduced": "33"
                  },
                  {
                    "last_affected": "33"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-21289",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441616,
  "published_at": "2021-02-02T19:15:14.22+00:00"
}