CVE-2025-30221 Pitchfork HTTP Request/Response Splitting vulnerability
Medium 4.3
Published
Updated
Check this codebase for CVE-2025-30221 and fix it if it is affected.
What it is: CVE-2025-30221 is a medium-severity vulnerability in Shopify pitchfork, published on 27 Mar 2025.
Exploitation: There is no known exploitation of CVE-2025-30221 in the wild and no public exploit code.
Affected packages and fixed versions:
- pitchfork (RubyGems): affected all versions; fixed in 0.11.0
- pitchfork (RubyGems): affected all versions; fixed in 0.11.0
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2025-30221/ (Markdown: https://insights.sbomify.com/CVE-2025-30221/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2025-30221?
CVE-2025-30221 is a medium-severity vulnerability in Shopify pitchfork, published on 27 Mar 2025.
Official 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.
Weakness: CWE-113
Which versions are affected by CVE-2025-30221?
2 open source packages ship an affected version, including pitchfork.
| Package | Affected | Fixed in |
|---|---|---|
pitchfork RubyGems | All versions | 0.11.0 |
pitchfork RubyGems | All versions | 0.11.0 |
How do I fix CVE-2025-30221?
Upgrade pitchfork to 0.11.0 or later.
Is CVE-2025-30221 being exploited?
There is no known exploitation of CVE-2025-30221 in the wild and no public exploit code.
Sources
Also known as GHSA-pfqj-w6r6-g86v.