Pitchfork HTTP Request/Response Splitting vulnerability

{
  "id": "71dad73d406248ae38d6f1b5770b81b19c3af5cec99384598fcd2ca85338fce6",
  "url": "https://osv.dev/vulnerability/CVE-2025-30221",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Pitchfork HTTP Request/Response Splitting vulnerability",
    "summary": "Pitchfork is a preforking HTTP server for Rack applications. Versions prior to 0.11.0 are vulnerable to HTTP Response Header Injection when used in conjunction with Rack 3. The issue was fixed in Pitchfork release 0.11.0. No known workarounds are available.",
    "evidence": "osv:CVE-2025-30221",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-30221",
      "aliases": [
        "CVE-2025-30221",
        "GHSA-pfqj-w6r6-g86v"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/shopify/pitchfork",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "abab81f2afdc3927fd240ccff366eedca20380f8"
                },
                {
                  "fixed": "17ed9b61bf9f58957065f7405b66102daf86bf55"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.11.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "17ed9b61bf9f58957065f7405b66102daf86bf55"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.10.0",
            "v0.9.0",
            "v0.8.0",
            "v0.7.0",
            "v0.6.0",
            "v0.5.0",
            "v0.4.1",
            "v0.4.0",
            "v0.3.0",
            "v0.2.0",
            "v0.1.2",
            "v0.1.1",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-30221.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.360872575Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/30xxx/CVE-2025-30221.json",
        "https://github.com/Shopify/pitchfork/security/advisories/GHSA-pfqj-w6r6-g86v",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-30221",
        "https://github.com/Shopify/pitchfork/commit/17ed9b61bf9f58957065f7405b66102daf86bf55"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-113"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/30xxx/CVE-2025-30221.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-30221",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 508978,
  "published_at": "2025-03-27T14:46:32.43+00:00"
}