Overview :
Apache CXF OpenId Connect token service does not properly validate the clientId
Affected Product(s) :
  • Apache CXF prior to 3.3.4 and 3.2.11.
Vulnerability Details :
CVE ID : CVE-2019-12419
Apache CXF provides all of the components that are required to build a fully fledged OpenId Connect service. There is a vulnerability in the access token services, where it does not validate that the authenticated principal is equal to that of the supplied

If a malicious client was able to somehow steal an authorization code issued to another client, then they could exploit this vulnerability to obtain an access token for the other client.

Solution :

Users of Apache CXF that rely on the OpenId Connect service should update to either the 3.3.4 or 3.2.11 releases.