lib/omniauth/failureendpoint.rb in OmniAuth before 1.9.2 (and before 2.0) does not escape the messagekey value.
{ "binaries": [ { "binary_name": "ruby-omniauth", "binary_version": "1.3.1-1+deb9u1build0.16.04.1" } ] }
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36599.json"
{ "binaries": [ { "binary_name": "ruby-omniauth", "binary_version": "1.6.1-2" } ] }
{ "binaries": [ { "binary_name": "ruby-omniauth", "binary_version": "1.9.0-1" } ] }
{ "binaries": [ { "binary_name": "ruby-omniauth", "binary_version": "1.9.1-1" } ] }
{ "binaries": [ { "binary_name": "ruby-omniauth", "binary_version": "2.1.1-1" } ] }
{ "binaries": [ { "binary_name": "ruby-omniauth", "binary_version": "2.1.1-4" } ] }