Vibration damper, comprising a reservoir, an inner tube which is arranged in the reservoir tube and provides a working space, a piston rod which dips into the inner tube, and a piston which is arranged on the piston rod for dividing a working space of the vibration damper into a first working chamber and a second working chamber, a first hydraulic valve for the rebound stage of the vibration damper and a second hydraulic valve for the compression stage of the vibration damper, and a control valve which is connected in series with respect to these hydraulic valves for arranging in the working space of the vibration damper, in order, in the intended operating range of the vibration damper, to influence an overflow of damping medium between the first and the second working chamber (6, 7) both in the rebound stage and in the compression stage of the vibration damper, a first additional valve for the rebound stage and a second additional valve for the compression stage, which additional valves are arranged on the piston for connecting the first and second working chamber and are connected in parallel to the first hydraulic valve, the second hydraulic valve and the control valve, a further valve which is arranged between the inner tube and the reservoir tube, characterized in that the first and second additional valve (14, 15) are configured as overload valves for protecting the control valve in relation to an overload threshold of the control valve, and, furthermore, at least the second additional valve for the compression stage has a working range which is positioned ahead of the overload threshold of the control valve and overlaps the working range of the further valve, in order to influence the damping behaviour in the compression stage, which damping behaviour is determined by way of the further valve and the control valve in the intended operating range of the vibration damper. a reservoir, an inner tube which is arranged in the reservoir tube and provides a working space, a piston rod which dips into the inner tube, and a piston which is arranged on the piston rod for dividing a working space of the vibration damper into a first working chamber and a second working chamber, a first hydraulic valve for the rebound stage of the vibration damper and a second hydraulic valve for the compression stage of the vibration damper, and a control valve which is connected in series with respect to these hydraulic valves for arranging in the working space of the vibration damper, in order, in the intended operating range of the vibration damper, to influence an overflow of damping medium between the first and the second working chamber (6, 7) both in the rebound stage and in the compression stage of the vibration damper, a first additional valve for the rebound stage and a second additional valve for the compression stage, which additional valves are arranged on the piston for connecting the first and second working chamber and are connected in parallel to the first hydraulic valve, the second hydraulic valve and the control valve, a further valve which is arranged between the inner tube and the reservoir tube, characterized in that the first and second additional valve (14, 15) are configured as overload valves for protecting the control valve in relation to an overload threshold of the control valve, and, furthermore, at least the second additional valve for the compression stage has a working range which is positioned ahead of the overload threshold of the control valve and overlaps the working range of the further valve, in order to influence the damping behaviour in the compression stage, which damping behaviour is determined by way of the further valve and the control valve in the intended operating range of the vibration damper.