{"cve":"CVE-2025-30221","nvd":{"published":"2025-03-27T15:16:02.150","modified":"2026-06-17T09:08:22.990","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","score":4.3},"cwes":["CWE-113"],"references":["https://github.com/Shopify/pitchfork/commit/17ed9b61bf9f58957065f7405b66102daf86bf55","https://github.com/Shopify/pitchfork/security/advisories/GHSA-pfqj-w6r6-g86v"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:00:28.034033815+00:00"},"epss":{"cve":"CVE-2025-30221","score":0.00291,"percentile":0.21737,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-pfqj-w6r6-g86v","url":"https://osv.dev/vulnerability/GHSA-pfqj-w6r6-g86v","summary":"Pitchfork HTTP Request/Response Splitting vulnerability","modified":"2025-03-28T16:31:51.247759Z","packages":[{"ecosystem":"RubyGems","name":"pitchfork","purl":"pkg:gem/pitchfork","ranges":["<0.11.0"],"fixed":["0.11.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}