Access to attachment file to approver when he hose not access to request

Access to attachment file to approver when he hose not access to request

Hi,
Please consider this scenario:
When we raised a request that have a attachment file and send it to approver, the approver can approve or reject request, but he can not access to attachment of request.
We do not want him to have access to the request ,Only he can see the attachment
Is it possible?