Wiktionary
overcommit
n. (context computing English) Allocation of more resources than are actually available. vb. To make excessive commitments, either beyond one's ability or beyond what is reasonable
Usage examples of "overcommit".
Or was the private audience because he didn’t want to make too much of a furor over what could have been a disaster in the east while he was overcommitted in the west?
Whenever I overcommitted to any one of them, I seemed to be neglecting something else, especially Kik and Luke.