CVE-2009-4123

CVE-2009-4123 affects the jruby-openssl gem for JRuby, with versions prior to 0.6 mishandling SSL certificate validation. The issue enables attackers to masquerade as a legitimate SSL server by abusing certificate validation logic, per Red Hat andVeracode entries, which detail faulty handling suc...

CVE-2025-46551

JRuby-OpenSSL (JRuby OpenSSL gem) prior to 0.15.4 fails hostname verification when validating SSL certificates, enabling MITM risk for HTTPS requests to external APIs or web scraping. The affected range is 0.12.1 up to, but not including, 0.15.4 (aligned with JRuby 9.3.4.0–9.4.12.1 and 10.0.0.0–1...