SecAppDev 2022 Lecture Details

Security of WebAssembly applications

Quentin Stiévenart
Wednesday June 15, 09:00 - 10:30
Short description

WebAssembly enables near-native performance for web applications. We will dive deep into the world of WebAssembly, with a focus on the security concerns that need to be addressed when developing WebAssembly applications.


WebAssembly is a novel platform to which applications written in a high-level language can be compiled to. It enables, among others, cross-platform application deployment, and can easily be integrated within web applications, bringing near-native performance to the web. However, such new technological solutions bring new security concerns.

This session offers a deep-dive into WebAssembly, its current uses, and the security concerns one must have when developing applications that feature components written in WebAssembly.

Key takeaway

Despite WebAssembly having been developed with security in mind, it is important to be aware of the security limitations of this platform.

Content level


Target audience

Developers interested to learn more about and leverage WebAssembly.


Basic programming skills are recommended, and knowledge of web development is a plus. Familiarity with low-level assembly languages is not required.

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Quentin Stiévenart

Quentin Stiévenart

Post-doctoral researcher, Vrije Universiteit Brussel

Quentin Stiévenart has joined the Vrije Universiteit Brussel in 2014 after completing a Master at ULB. He defended his PhD dissertation on the topic of scalable static program analyses for concurrent programs in 2018. Since then, he has continued developing program analyses for modern programming languages, and applying them to reason about security properties in modern programs. His recent work include analyses specific for the new WebAssembly bytecode format.

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