Comment by criemen
> Maybe those tools should explicitly confirm executing every external command
This wouldn't work - it's not external commands that's the problem, it's arbitrary code that's being executed. That code has access to all regular system APIs/syscalls, so there's no way of explicitly confirming external commands.
Python/pip suffers the same problem btw, so I think that ship has sailed.
Rust is investigating using sandboxed WASM for proc macros, but it'll be some time before there's any movement there: https://github.com/rust-lang/compiler-team/issues/876