CVE-2026-4349: Improper Authentication

A vulnerability was determined in Duende IdentityServer4 up to 4.1.2. The affected element is an unknown function of the file /connect/authorize of the component Token Renewal Endpoint. This manipulation of the argument idtokenhint causes improper authentication. It is possible to initiate the...

Duende IdentityServer 授权问题漏洞

Duende IdentityServer is an open-source framework developed by Duende for ASP.NET Core, which adheres to standard OpenID Connect and OAuth 2.x protocols. Duende IdentityServer has a vulnerability related to authorization. This vulnerability stems from incorrect handling of the parameter idtokenhi...