A module for an aircraft turbine engine, the module comprising a longitudinal axis and comprising: - a hub extending around the longitudinal axis and movable in rotation around the longitudinal axis, - vanes carried by the hub, each of the vanes being movable about a pitch axis extending radially with respect to the longitudinal axis, - a drive shaft designed to drive in rotation the hub about the longitudinal axis, - a mechanical speed reducer configured to connect a low-pressure shaft of the turbine engine to the drive shaft, and - a device for changing the pitch of the vanes about their pitch axes, the device comprising: ∘ a hydraulic actuator movable in rotation about the longitudinal axis and configured to drive the vanes about their pitch axes, ∘ a pump for supplying fluid to the hydraulic actuator comprising a transmission shaft and an envelope arranged around the transmission shaft and secured in rotation to the drive shaft, and ∘ an electric machine comprising a rotor secured in rotation to the transmission shaft and a stator fixed in rotation about the longitudinal axis, the stator being intended to be connected to an power supply cable, characterised in that the speed reducer comprises a first element designed to cooperate with the low-pressure shaft, a second element secured in rotation to the drive shaft and a third element fixed in rotation about the longitudinal axis, and in that a passage for the power supply cable is provided in the third element of the speed reducer. - a hub extending around the longitudinal axis and movable in rotation around the longitudinal axis, - vanes carried by the hub, each of the vanes being movable about a pitch axis extending radially with respect to the longitudinal axis, - a drive shaft designed to drive in rotation the hub about the longitudinal axis, - a mechanical speed reducer configured to connect a low-pressure shaft of the turbine engine to the drive shaft, and - a device for changing the pitch of the vanes about their pitch axes, the device comprising: ∘ a hydraulic actuator movable in rotation about the longitudinal axis and configured to drive the vanes about their pitch axes, ∘ a pump for supplying fluid to the hydraulic actuator comprising a transmission shaft and an envelope arranged around the transmission shaft and secured in rotation to the drive shaft, and ∘ an electric machine comprising a rotor secured in rotation to the transmission shaft and a stator fixed in rotation about the longitudinal axis, the stator being intended to be connected to an power supply cable, ∘ a hydraulic actuator movable in rotation about the longitudinal axis and configured to drive the vanes about their pitch axes, ∘ a pump for supplying fluid to the hydraulic actuator comprising a transmission shaft and an envelope arranged around the transmission shaft and secured in rotation to the drive shaft, and ∘ an electric machine comprising a rotor secured in rotation to the transmission shaft and a stator fixed in rotation about the longitudinal axis, the stator being intended to be connected to an power supply cable, characterised in that the speed reducer comprises a first element designed to cooperate with the low-pressure shaft, a second element secured in rotation to the drive shaft and a third element fixed in rotation about the longitudinal axis, and in that a passage for the power supply cable is provided in the third element of the speed reducer.