Rubygems

Rubygems is the package repository and package-management ecosystem for the Ruby programming language, whose widespread adoption across web applications and infrastructure automation means that vulnerabilities in the repository infrastructure or popular gems can propagate to a large installed base despite the vendor's narrow product footprint. Vulnerabilities affecting this vendor skew toward serious outcomes and recur through weakness classes characteristic of dynamic-language ecosystems: improper input validation, code injection, path traversal, injection attacks, and unsafe deserialization of untrusted data—all of which can allow remote code execution when gem dependencies are installed or updated. The exposure concentrates in the core rubygems package manager, rubygems.org repository itself, and widely used gems such as mail_gem and command_wrap, where these weaknesses translate to supply-chain risk for any project that pulls those dependencies. Defenders should monitor this vendor's advisories and coordinate patching across their Ruby dependency trees, treating gem updates as a security-critical function; live severity, exploitation, and exposure counts are shown alongside this summary.