Im regularly transiting with 1:05 from 2E (L satellite from CMN morning flight) to 2F (GVA) with SkyPriority and never missed my flight with custom AND security to clear (with SkyPriority). Coming in from IAH, I’m not sure you need to clear security as well? YMMV obviously as it depends on the load to clear both at the time you arrive. As others have mentioned, there are 6-7 daily flights from CDG to BCN so AF would rebook you to another one.