Understanding Wasm Security Risks

WebAssembly (Wasm) is a powerful technology, but like any new tool, it comes with potential security risks. This post explores some key areas to be aware of when developing and deploying Wasm applications.

One of the main concerns is the potential for code injection. Because Wasm is designed to be a low-level bytecode format, it can be susceptible to vulnerabilities if not handled correctly. This is particularly true when dealing with untrusted input.

Further, the memory model of Wasm presents specific challenges. Understanding how memory is managed and accessed is crucial for preventing memory corruption issues.

We'll delve deeper into specifics like the use of the Wasmtime runtime, the importance of sandboxing, and best practices for secure Wasm development.