Usage of unsafe random function in form-data for choosing boundary

{
  "id": "7bb133cbf782061ceb1a0082c1c368833d30b28b3e9b2fbf121ed1aa79471e70",
  "url": "https://osv.dev/vulnerability/CVE-2025-7783",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Usage of unsafe random function in form-data for choosing boundary",
    "summary": "Use of Insufficiently Random Values vulnerability in form-data allows HTTP Parameter Pollution (HPP). This vulnerability is associated with program files lib/form_data.Js. This issue affects form-data: < 2.5.4, 3.0.0 - 3.0.3, 4.0.0 - 4.0.3.",
    "evidence": "osv:CVE-2025-7783",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2025-7783",
      "aliases": [
        "CVE-2025-7783",
        "GHSA-fjxv-7rqg-78g4"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/form-data/form-data",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "efe6c2693159084b18c58648e77203d1d810395b"
                },
                {
                  "fixed": "3d1723080e6577a66f17f163ecd345a21d8d0fd0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.5.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3d1723080e6577a66f17f163ecd345a21d8d0fd0"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.0.3",
            "v2.5.3",
            "v4.0.2",
            "v2.5.2",
            "v4.0.1",
            "v4.0.0",
            "v3.0.1",
            "v2.5.1",
            "v3.0.0",
            "v2.5.0",
            "v2.4.0",
            "v2.3.2",
            "v2.3.1",
            "v2.3.0",
            "v2.2.0",
            "v2.1.4",
            "v2.1.3",
            "2.1.3",
            "v2.1.2",
            "v2.1.1",
            "v2.1.0",
            "v2.0.0",
            "v1.0.0-rc3",
            "v1.0.0-rc2",
            "v1.0.0-rc1",
            "0.2",
            "0.1.3",
            "0.1.2",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-7783.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.559357500Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2025/07/msg00023.html",
        "https://npmjs.com/form-data",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/7xxx/CVE-2025-7783.json",
        "https://github.com/form-data/form-data/security/advisories/GHSA-fjxv-7rqg-78g4",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-7783",
        "https://github.com/form-data/form-data/commit/3d1723080e6577a66f17f163ecd345a21d8d0fd0",
        "https://github.com/form-data/form-data"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-330"
        ],
        "cna_assigner": "harborist",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "3.0.0 - 3.0.3"
                  },
                  {
                    "last_affected": "3.0.0 - 3.0.3"
                  },
                  {
                    "introduced": "4.0.0 - 4.0.3"
                  },
                  {
                    "last_affected": "4.0.0 - 4.0.3"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/7xxx/CVE-2025-7783.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-7783",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497594,
  "published_at": "2025-07-18T16:34:44.889+00:00"
}