Security advisory

{
  "id": "2a9728315f67efe2b7ab9d01ed0c414e2b44d2260cd2db3243b72e010cd0c25a",
  "url": "https://osv.dev/vulnerability/CVE-2021-43805",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-43805",
    "summary": "Solidus is a free, open-source ecommerce platform built on Rails. Versions of Solidus prior to 3.1.4, 3.0.4, and 2.11.13 have a denial of service vulnerability that could be exploited during a guest checkout. The regular expression used to validate a guest order's email was subject to exponential backtracking through a fragment like `a.a.` Versions 3.1.4, 3.0.4, and 2.11.13 have been patched to use a different regular expression. The maintainers added a check for email addresses that are no longer valid that will print information about any affected orders that exist. If a prompt upgrade is not an option, a workaround is available. It is possible to edit the file `config/application.rb` manually (with code provided by the maintainers in the GitHub Security Advisory) to check email validity.",
    "evidence": "osv:CVE-2021-43805",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-43805",
      "aliases": [
        "CVE-2021-43805",
        "GHSA-qxmr-qxh6-2cc9"
      ],
      "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/solidusio/solidus",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "310872fde2d6e44241aea0eedb686a3119c53393"
                },
                {
                  "introduced": "a731a1a7bede0b7cd012551c27ebdd74e08c022a"
                },
                {
                  "fixed": "14e9ccda302f3ed22af3b7caae007586cdd0576a"
                },
                {
                  "introduced": "1e06d430ba17c8ac092ddb00f23b38eb5c062b80"
                },
                {
                  "fixed": "c8b6357ffee9a969f7939e6dcf865508c8a623f8"
                },
                {
                  "fixed": "9867153e01e3c3b898cdbcedd7b43375ea922401"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nebulab:solidus:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.11.13"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:nebulab:solidus:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "fixed": "3.0.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:nebulab:solidus:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.1.0"
                      },
                      {
                        "fixed": "3.1.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9867153e01e3c3b898cdbcedd7b43375ea922401"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.11.12",
            "v3.0.3",
            "v3.1.3",
            "v2.11.11",
            "v3.0.2",
            "v3.1.2",
            "v3.1.1",
            "v3.1.0",
            "v2.11.10",
            "v3.0.1",
            "v3.0.0",
            "v2.11.9",
            "v2.11.8",
            "v2.11.7",
            "v2.11.6",
            "v2.11.5",
            "v3.0.0.rc2",
            "v2.11.4",
            "v2.11.3",
            "v2.11.2",
            "v2.11.1",
            "v2.11.0",
            "v2.10.0.beta1",
            "v2.9.0.rc.1",
            "v2.7.0",
            "v2.0.0.beta1",
            "v1.1.0.pre2",
            "v1.1.0.beta1",
            "v1.0.0.pre3",
            "v1.0.0.pre2",
            "v1.0.0.pre"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43805.json"
          }
        }
      ],
      "modified": "2026-10-20T10:55:03.306218470Z",
      "provider": "osv",
      "references": [
        "https://github.com/solidusio/solidus/commit/9867153e01e3c3b898cdbcedd7b43375ea922401",
        "https://github.com/solidusio/solidus/security/advisories/GHSA-qxmr-qxh6-2cc9"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-43805",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386795,
  "published_at": "2021-12-07T18:15:07.407+00:00"
}