CVE-2025-30221

Name: CVE-2025-30221
Creator: NVD / NIST
Published: 2025-03-27T15:16:02.15+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2025-30221 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.0

4.3/10

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS Probability

0.25%

16.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-113

References

Timeline

Published: Mar 27, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-30221?

How severe is CVE-2025-30221?

CVE-2025-30221 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2025-30221?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-30221?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST