SELECT 
  bundle_image_id, 
  bundle_id 
FROM 
  cscart_product_bundle_images 
WHERE 
  bundle_id IN (1, 2, 3)

Query time 0.00475

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_product_bundle_images",
          "access_type": "ALL",
          "possible_keys": ["bundle_id"],
          "rows": 6,
          "filtered": 100,
          "attached_condition": "cscart_product_bundle_images.bundle_id in (1,2,3)"
        }
      }
    ]
  }
}