pdf_info 0.5.3 is vulnerable to Command Execution because the Ruby code uses backticks instead of Open3.Referenceshttps://rubygems.org/gems/pdf_infohttps://github.com/affix/CVE-2022-36231https://github.com/newspaperclub/pdf_info/pull/15https://github.com/newspaperclub/pdf_info/issues/16