Preheat oven to 375° and line a large baking sheet with parchment paper. Cut brie into 1” cubes.
Slice each biscuit in half to create two thin rounds. Dollop a small spoonful of cranberry sauce onto each round and top with a piece of brie. Bring up edges of dough and pinch to seal. Place seam side-down on prepared baking sheet.
In a small bowl, whisk butter, thyme, and salt until combined. Brush over stuffed biscuit bombs.
Bake until dough is golden, 20 to 25 minutes.
