overextended

verb
  1. 1

    To expand or extend to an excessive degree, especially to do so beyond a safe limit.

  2. 2

    To apply (a term) to too many referents, by overextension.

  3. 3

    To push a pawn too far, so that it becomes vulnerable to the opponent's attacks.

adjective
  1. 1

    Extended or expanded beyond a safe limit

Source: https://en.wiktionary.org/wiki/overextend, https://en.wiktionary.org/wiki/overextended