/e: let me clarify, I agree with the three comments under me. You, the commercial entity using my code, is accountable. I am not liable if you as a private person run my shitty code. I was thinking of private persons and being on the hook for my GitHub repos.
Basically they can't just brush off responsibility for using FOSS code by saying "well I didn't write it, it's not my fault" unless you as the FOSS developer are selling them a support contract for any potential issues in your code.