I cannot seem to find a ruling on how a ghost aging a Warforged would work.

Is there no effect since we do not know how aging works with Warforged or should the DM implement some kind of impact? Or something else?

Thanks! Humans have to worry about being aged by ghosts but can’t be killed by rusty monsters. For warforged, the reverse is true.

— Keith Baker (@HellcowKeith) October 31, 2020