A cable connector assembly (100) adapted for mating with a mating connector includes a connector (200) connected with a cable (300). The connector includes a mating member (1), a metal shell (4) disposed at an outer side of the mating member and the cable, and an outer shell (5) enclosing the metal shell. The metal shell defines an opening (43) adjacent to a soldered portion of the cable soldered with the connector to prevent the soldered portion from shorting with the metal shell.