CVE-2005-2337: Yukihiro Matsumoto Ruby

High severity, CVSS 7.5. EPSS: 3.3% chance of exploitation in the next 30 days.

Ruby 1.6.x up to 1.6.8, 1.8.x up to 1.8.2, and 1.9.0 development up to 2005-09-01 allows attackers to bypass safe level and taint flag protections and execute disallowed code when Ruby processes a program through standard input (stdin).

Affected products

• Yukihiro Matsumoto Ruby: version 1.6 only; version 1.6.1 only; version 1.6.2 only; version 1.6.3 only; version 1.6.4 only; version 1.6.5 only; …

Published 2005-10-07. Last modified 2026-06-16.