Any way you slice it, its GOT to be fixed, soon. If its a section you think you can fix yourself, you have to first empty the fuel tank. Siphon out as much as you can, then get under the car and disconnect the line, and be prepared to catch the rest of the fuel leaking out. Then replace the leaky section. Since I don't know if that part of line is rubber or metal, you're going to have to judge for yourself if its something you want to take on.
Most decent shops should be able to handle it; you won't need to take it to a dealer, although if its under warranty, maybe it would be covered. Whatever you do, get it fixed SOON, and don't park the car in a closed space (garage) until its fixed.
