CVE-2025-30221

Pitchfork HTTP Request/Response Splitting vulnerability

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.0 •
EPSS 0.04%
Affected: Shopify pitchfork
Published at:
Updated at:

References

Link Tags
https://github.com/Shopify/pitchfork/security/advisories/GHSA-pfqj-w6r6-g86v
https://github.com/Shopify/pitchfork/commit/17ed9b61bf9f58957065f7405b66102daf86bf55

Frequently Asked Questions

What is the severity of CVE-2025-30221?
CVE-2025-30221 has been scored as a medium severity vulnerability.
How to fix CVE-2025-30221?
To fix CVE-2025-30221, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-30221 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-30221 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-30221?
CVE-2025-30221 affects Shopify pitchfork.
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