Arduino Mega flash sketch via CAN Bus

Hello everyone,

is it possibe to flash the arduino sketch via CAN Bus and no via USB Serial?
My idea is to use the MCP2515 CAN Bus Module to access to the Arduino Mega.
Are there any Bootloader for the Arduino Mega or Arduino Due to do this?

I look forward to your answers, thank you.

It should be theoretically possible. I don't know of any bootloader that does it.
(or any host-side tools that would be appropriate, either.)