barebox is a bootloader. When creating a FIT (Firmware Image Table), the `mkimage(1)` function sets the `hashed-nodes` property of the FIT signature node. This property lists the nodes of the FIT that were hashed during the signing process for later verification by the bootloader. However, the `hashed-nodes` property itself is not included in the hash, allowing an attacker to modify it. This modification can potentially trick the bootloader into booting images that have not been verified.