A leak is a common problem for broken or malfunctioning garbage disposals. If it’s leaking from the top or side, then oftentimes repairs are an available option. If it’s leaking from the top, it could be a loose or damaged seal. Garbage disposals use this seal and a flange to connect to the sink without letting water leak out. Over time the seal may break down or be shaken loose, which can result in a leaking garbage disposal.
If it’s leaking from the side, it could be due to the dishwasher drain tube, or the disposal drain tube seal which would be a minor repair. If the leak is from a crack in the unit, though, it will need replacement. If your garbage disposal is leaking from the bottom, it could be a internal compromised seal which can’t be repaired, and the unit will need to be replaced.