Improper Output Neutralization for Logs Affecting rack package, versions <2.2.12>=3.0.0.beta1, <3.0.13>=3.1.0, <3.1.11
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Start learning- Snyk IDSNYK-RUBY-RACK-9058602
- published5 Mar 2025
- disclosed4 Mar 2025
- creditMasamune
Introduced: 4 Mar 2025
NewCVE-2025-27111 (opens in a new tab)How to fix?
Upgrade rack to version 2.2.12, 3.0.13, 3.1.11 or higher.
Overview
rack is a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between (the so-called middleware) into a single method call.
Affected versions of this package are vulnerable to Improper Output Neutralization for Logs in the Rack::Sendfile middleware which logs values from the X-Sendfile-Type header. An attacker can inject messages into logs by including escape sequences such as newline characters in sent headers.