Onscreen, the only scenes of gore are in just a few episodes, and extend to showing streaks of red from small cuts and scratches. These are not shown in any detail, and are generally mended within a scene or two.
Onscreen violence is limited to punches. There's occasional threat of bladed weapons.
Offscreen and in dialogue, there's an increase in the level of violence. Attacks on travellers by wolves is discussed in detail in episode 2, and a flashback strongly suggests a human being eaten.