> "Oh, my credit card information was stolen due to memory issues in this web-service, it's fine though, we didn't pay the guy, so we can't blame him.".
This is a good opportunity for you to read up on the license you explicitly agreed to in order to use said software in order for you to discover that that's precisely what you agree to when you use said software.
You don't owe the maintainer anything, nor does the maintainer owe you anything at all. The project maintainers donated their work to be used freely as is, and that's the full extent of what you are entitled to.
This is a good opportunity for you to read up on the license you explicitly agreed to in order to use said software in order for you to discover that that's precisely what you agree to when you use said software.
You don't owe the maintainer anything, nor does the maintainer owe you anything at all. The project maintainers donated their work to be used freely as is, and that's the full extent of what you are entitled to.