WebAssembly Security: Same Sandbox, New Risks

I built 30 security probes in Rust/WASM to test what WebAssembly can actually do in a browser. The sandbox is the same one JavaScript lives in — but the binary format creates real analysis gaps. And with WASI taking WASM beyond the browser into containers, edge, and serverless, the security surface is expanding fast.

July 13, 2026 · 10 min · Matt Konda