Shopify Pitchfork HTTP Response Header Injection Vulnerability

Vulnerability

A vulnerability allowing HTTP response header injection has been identified in Shopify Pitchfork versions prior to 0.11.0, when used with Rack 3. This issue can lead to HTTP request/response splitting.

Impact

Exploitation of this vulnerability allows for HTTP response header injection, which can be used to manipulate response headers in a way that may disrupt normal application behavior or facilitate further attacks, such as cross-site scripting or cache poisoning.

Remediation

Users are advised to upgrade to Pitchfork version 0.11.0 or later. Instructions for upgrading can be found in the Pitchfork repository on GitHub.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
0.6
exploitability
5.1
remediation
7.7
relevance
0.0
threat
3.2
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.