When transferring between concourses at Charles De Gaulle, is it necessary to go through the security check?

I'll be flying from Nice, France to Washington, DC soon, transferring at CDG. My flight from Nice arrives into terminal 2F, and my flight to Washington leaves from terminal 2E. I checked the CDG website for directions between gates and they lead me out of the restricted area. I only have about an hour layover time, and I am wondering if I MUST go through security when transferring between concourses, or if there is a way to get from one gate to another without leaving the secure area.