GHSA-H29V-HJ44-Q8CV Authorizer: Unvalidated redirect_uri in /authorize leaks OAuth2 tokens to attacker-controlled URL

Summary The /authorize endpoint accepts any redirecturi without validating it against AllowedOrigins. When responsetype=token or responsetype=idtoken, the server appends accesstoken, idtoken, and refreshtoken as query parameters and issues a 302 redirect to the attacker-supplied URL. An...