Are you allowed in this situation to overtake the vehicle?

In the visible situation, the vehicle ahead is signaling an intention to turn left, which means it may only be overtaken on the right side. Although the manoeuvre takes place within an intersection, it is permitted because, according to Art. 24 para. 9 of the Road Traffic Act, the prohibition on overtaking at intersections does not apply to junctions where traffic is controlled by traffic lights.