CVE-2024-35231: Rack Rack-Contrib

High severity, CVSS 8.6. EPSS: 0.7% chance of exploitation in the next 30 days.

rack-contrib provides contributed rack middleware and utilities for Rack, a Ruby web server interface. Versions of rack-contrib prior to 2.5.0 are vulnerable to denial of service due to the fact that the user controlled data `profiler_runs` was not constrained to any limitation. This would lead to allocating resources on the server side with no limitation and a potential denial of service by remotely user-controlled data. Version 2.5.0 contains a patch for the issue.

Affected products

• Rack Rack-Contrib: before 2.5.0 (fixed in 2.5.0); up to and including 2.4

Published 2024-05-27. Last modified 2026-06-17.