Researchers Thai Do and Minh Pham have exposed multiple critical vulnerabilities in the Rack Ruby framework, a cornerstone of Ruby-based web applications with over a billion global downloads. Identified as CVE-2025-25184, CVE-2025-27111, and CVE-2025-27610, these flaws pose significant risks to applications built on frameworks like Ruby on Rails and Sinatra.
Source: GBHackers