GHSA-PM55-QFXR-H247 OmniAuth's `lib/omniauth/failure_endpoint.rb` does not escape `message_key` value

lib/omniauth/failureendpoint.rb in OmniAuth before 1.9.2 and before 2.0 does not escape the messagekey value...

CVE-2020-36599

lib/omniauth/failureendpoint.rb in OmniAuth before 1.9.2 and before 2.0 does not escape the messagekey value...