Does the 1999 Chevy Malibu ls have a cv axle?

No, the 1999 Chevy Malibu LS uses half-shafts, not CV axles. The difference is subtle but important: CV axles have constant velocity joints at both ends, allowing for significant steering angle changes. The Malibu's half-shafts have a constant velocity joint on the outer end (at the wheel), but a simpler joint (often a U-joint) at the differential end.