GHSA-V9XQ-2MVM-X8XC Duende IdentityServer has insufficient validation of DPoP cnf claim in Local APIs

Impact IdentityServer's local API authentication handler performs insufficient validation of the cnf claim in DPoP access tokens. This allows an attacker to use leaked DPoP access tokens at local api endpoints even without possessing the private key for signing proof tokens. Note that this only...

Duende IdentityServer has insufficient validation of DPoP cnf claim in Local APIs

Impact IdentityServer's local API authentication handler performs insufficient validation of the cnf claim in DPoP access tokens. This allows an attacker to use leaked DPoP access tokens at local api endpoints even without possessing the private key for signing proof tokens. Note that this only...