xml_security.rb in the ruby-saml gem before 1.0.0 for Ruby allows XPath injection and code execution because prepared statements are not used.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "ruby-saml", "binary_version": "1.7.2-1" } ] }
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-20108.json"