OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. In OAuthLib versions 3.1.1 until 3.2.1, an attacker providing malicious redirect uri can cause denial of service. An attacker can also leverage usage of `uri_validate` functions depending where it is used. OAuthLib applications using OAuth2.0 provider support or use directly `uri_validate` are affected by this issue.
OAuthLib versions 3.1.1 until 3.2.1
System Compromise: Remote attackers can cause DoS to oauthlib's web application.
Apply the most recent upgrade or patch from the vendor.