Fair, though with the CL/Python/Whatever you would have to have a session started before visiting the file. I suppose with the newer eglot and friends, it could reach out using LSP as soon as you enter a project directory? At that point, I'd assume similar attacks exist in those contexts, too? Maybe protected by some sandboxing in the LSP side?
You can pretty easily set up Emacs to work that way for any language with a REPL.