WASM resulted in adding a lot of new API to JS, like thread-shared buffers and coming atomics. This requires quite a few new lines of native code in the impleme

WASM resulted in adding a lot of new API to JS, like thread-shared buffers and coming atomics. This requires quite a few new lines of native code in the implementation significantly increasing attack surface. Another thing is that WASM makes code faster so exploiting timing bugs or cache leaks gets easier.