Is this happening only at full, or very near full, steering lock? If so, it is not a problem. To help with turning radius all sorts of odd looking things happen at full lock.
If you mean cornering at speed (above 10mph) and this is happening, first things first. Verify that your tire gauge is correct. I know you will say that all the other tires are fine with the same gauge, but the fronts are the only ones that get turned at speed. If you thought you had 80 psi and really had 50 psi it could be the problem.