Proper oscillator for CPLD
I use these osc modules for microcontrollers and EPLDs no problem. The over-voltage you are seeing is more than likely a "feature" of your scope probe. I get it on my Tektronix scope and I'm just "used to it"!!

For CPLD/EPLD/FPGAs there are dedicated pins for the master oscillator but if it isn't the master oscillator then no problem, connect it to any IO pin.