Are you allowed in this situation to overtake the vehicle from the right if there is such a possibility?

Why?

The red car is signalling a left turn, so you may overtake it only on its right. Traffic lights control the crossing and junction shown, so the general overtaking prohibitions at these locations do not apply here. You must still have enough space and take particular care.

Art. 24 ust. 5 i ust. 7 pkt 3 oraz art. 26 ust. 3 pkt 1 Prawa o ruchu drogowym