Since the maj on jenkins 2.346.3, we got this error when we try to use checkmarx plugin to launch a scan :

java.lang.SecurityException: Rejected: org.apache.http.HttpHost; see https://jenkins.io/redirect/class-filter/

After somes research, I found that the plugin is using his own version of org.apache.httpcomponents libraries.

Jenkins provide a plugin to manage the versions of theses libraries : apache-httpcomponents-client-4-api.

Before it was still working but now Jenkins block the usage of the version of theses libraries used by checkmarx-plugin.