Defending Buffer Overflows in WebAssembly: A Transpiler Approach

Weiqi Feng

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arXiv · 2604.03859

Defending Buffer Overflows in WebAssembly: A Transpiler Approach

Weiqi Feng

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Abstract

WebAssembly is quickly becoming a popular compilation target for a variety of code. However, vulnerabilities in the source languages translate to vulnerabilities in the WebAssembly binaries. This work proposes a methodology and a WebAssembly transpiler to prevent buffer overflows in the unmanaged memory of the WebAssembly runtime. The transpiler accepts a WebAssembly binary and adds stack canaries and Address Space Layout Randomization (ASLR) to protect against buffer overflows.

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Weiqi Feng. 2026-04-04. Defending Buffer Overflows in WebAssembly: A Transpiler Approach. https://arxiv.org/abs/2604.03859

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