Allocation of Resources Without Limits or Throttling Affecting rack package, versions <2.2.14>=3.0.0.beta1, <3.0.16>=3.1.0, <3.1.14
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-RUBY-RACK-10074187
- published8 May 2025
- disclosed7 May 2025
- creditTaiPhung217
Introduced: 7 May 2025
NewCVE-2025-46727 (opens in a new tab)How to fix?
Upgrade rack to version 2.2.14, 3.0.16, 3.1.14 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 Allocation of Resources Without Limits or Throttling in the Rack::QueryParser. An attacker can exhaust memory and CPU by sending HTTP requests containing an excessively large number of &-separated query parameters.
Workaround
This vulnerability can be avoided by any means that limits the length of incoming raw strings or application/x-www-form-urlencoded data, including application-level limitation or employing middleware.