In strategy.rb in OmniAuth before 1.3.2, the authenticity_token value is improperly protected because POST (in addition to GET) parameters are stored in the session and become available in the environment of the callback phase.
{ "nvd_published_at": null, "cwe_ids": [], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2020-06-16T21:29:12Z" }