Yep. And deliberately so - it gives me a slightly longer exposure (8x10 from a 4x5 is really short) and it gives me an additional degree of freedom to make quick fine adjustments in the red axis.
I realise the classic advice is to use a minimal (no cyan) filter, but I find it easier to work with a little bit there. Also as previously noted, my bulb is probably quite yellow and I've used 10C8Y at least once when correcting a very blue image.
Certainly with a normal enlarger and bulb, one should in theory always be able to get a good print with 0 cyan.