browsing as guest threw CMIS

Hello,

I am using ROLE_TICKET in my local CMIS session (implementation of org.apache.chemistry.opencmis ) to authenticate to Alfresco.

But when I want to access as guest, creating a ticket for guest, I cannot open a session because org/alfresco/api/opencmis/OpenCMIS.get web script needs to be user authenticated to be executed.

I don't know if it is secure to let guest to execute this script ?

Is there a way to browse the repository as guest from CMIS api ?

Thanks in advance,

David