Bun Security Essentials

Online Course & Book

Hardening JavaScript Applications by Implementing Secure Coding and Mitigating Supply Chain Security Threats

Available on January 2025

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Join 430+ developers learning Node.js security skills

Bun Security Essentials course

What do you get?

A 75 pages ebook and online course material with further updates expected. You'll understand Bun's security features, the vulnerable surface of the Bun runtime, and how to secure your Bun applications. Through-out our learning we'll also compare to Node.js application security practices so we can draw parallels and gain foothold of the exposed Node.js API security designs and pitfalls.

  • Bun Security Essentials ebook & online course
  • GitHub repository with Bun insecure code examples
  • Exploit code snippets and code examples
  • Node.js Secure Coding ebooks on 50% discount
  • Cool ebook editions in Light & Dark mode

What you'll learn?

Stand out during your next job interview, impress your colleagues, and level up your career by learning how to secure Bun applications with this comprehensive educational course.

  • Learn about Bun secure-by-default approach
  • Learn about Supply Chain Security with Bun
  • Learn how to protect against Path Traversal in Bun
  • Learn how to protect against Command Injection in Bun
  • Compare with Node.js secure coding techniques

A Proven Security Track Record

Through-out 2023 and 2024 I published a series of deep-dive 300 pages long books on Node.js Secure Coding

Node.js Secure Coding
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Everyone knows JavaScript...

be the one who knows how to secure it 🕶️

Trusted by Industry Leaders

Developers & Security engineers from these companies bought Liran's JavaScript security and secure coding books

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Developers who bought Liran's Node.js Secure Coding books say...

I have finished reading Node.js Secure Coding from Liran Tal. I read the whole thing in an hour without realizing it. I learned and discovered a few things along the way. I laughed at the IFS, didn't see it coming.

Thomas Gentilhomme

Thomas Gentilhomme

Node.js lead at MyUnisoft, Node Security WG

Liran Tal, your book on Node.js security is an absolute gem! The abundance of real-world examples with commented fixes is incredibly valuable. Your practical solutions have enlightened me, especially the discovery of the shell-quote module! Recommended to all Node.js developers!

Manuel Spigolon

Manuel Spigolon

Senior Software Developer at NearForm

I wholeheartedly enjoyed working and learning from Liran's expertise in securing applications. With extensive experience speaking at global conferences and actively contributing code to the community, he is a true authority in the field. I highly endorse both his enlightening book and engaging workshop, as they are invaluable resources for anyone looking to enhance their understanding and implementation of application security

Yoni Goldberg

Yoni Goldberg

Software Architect, Node.js Specialist

Liran Tal just published a new book about Node.js secure coding. It is worth taking a look at!

Daniel Garcia

Daniel Garcia

Cybersecurity & API Security Consultant

I highly recommend the new Node.js Secure Coding book published by Liran Tal. Covers not only Node.js but also gives you another perspective on how to achieve good and secure applications, especially with understanding and handling SAST vulnerabilities. Liran - CHAPEAU!

Eli (Tom) Lelonek

Eli (Tom) Lelonek

Application Security Manager at Allot

Got my copy of Node.js secure coding! I already know I'll learn a lot 🔥

Marco Ippolito

Marco Ippolito

Node.js Collaborator & Developer Experience Engineer @NearForm

A very interesting book that I recommend if you are in the Node.js world is "Node.js Secure Coding" by Liran Tal. Laid out with explanations, examples and tips. Warmly recommended.

Diego Betto

Diego Betto

Founder & Senior Fullstack Developer

Read trough first 3 chapters last night, nice work Liran!

Aranđel Šarenac

Aranđel Šarenac

12+ years developer, focusing on Identity Security

Highly recommend Liran Tal's ebooks for any Node developers who are serious about security (which should be all of you!)

Alicia Sykes

Alicia Sykes

Principal Engineer @AND Digital

Started reading the Prevention and Exploitation of Path Traversal and I am very happy with the quality. It is connecting me to some knowledge I had from working in AV company and now with code, very interesting.

Yana Ifraimov

Yana Ifraimov

NOC Engineer @Skai

Node.js security rock-star Liran Tal drops another book on how to ship safe Node.js applications. I know it's hard to tell sometimes where to start from when it comes to security, as the internet is flooded with content. Well, look no more - trust content composed by Liran

Gal Weizman

Gal Weizman

Browser JS Application Security at MetaMask & LavaMoat

It's not every day that you can pay less than $20 for years of security wisdom. Just got this and will be using the book during my streams to improve my code.

Ray Fernando

Ray Fernando

AI app at TruthTorch.ai, ex-Apple Engineer

The amount of content covering advanced topics in Node.js is so little, makes this a must-read

Ruan Martinelli

Ruan Martinelli

Product engineer, Full-stack Freelancer & Consultant

I've followed Liran Tal's work for years and definitely one of the top experts in Node.js security! Give these a look as they are essential for anyone serious about securing their Node.js applications.

Zac Rosenbauer

Zac Rosenbauer

CTO & Co-founder at Joggr

Just got my hands on your new book and I'm thoroughly impressed! It's clear that your passion for application security and deep understanding of Node.js shines through every page

Zeal Chhasatiya

Zeal Chhasatiya

Security Analyst at Shared Services Canada

If you're a developer looking to better understand security vulnerabilities, this is one of the best books out there on the topic. While this book specifically focuses on Command Injection vulnerabilities in Node, the content contained within is broadly applicable to any developers writing software. It's an A++ book and absolutely worth the time to read and analyze. Liran is a top-tier security researcher and developer who's an icon in the security space. Seriously, look him up on Google, he's amazing.

Randall Degges

Randall Degges

Head of Developer Relations & Community at Snyk

Psyched to get my copy of Liran Tal's book: "Node.js Secure Coding: Defending Against Command Injection Vulnerabilities" Do yourself a favor and grab a copy!

Micah Silverman

Micah Silverman

Director, DevSecOps Acceleration at Snyk

I am just starting to read it now that I am doing security patching in Express. The book looks amazing! I mean... all the series is an amazing work, thanks a lot for investing the time to write them.

Ulises Gascón

Ulises Gascón

Express TSC & Node.js Collaborator

Outstanding book, can't wait.

Tiger Abrodi

Tiger Abrodi

TypeScript fanatic

On point content, short book just for my liking. I like the interesting facts in the middle and code examples are good. I like the approach of Risk -> Solution -> Implementation

Sumit Kumar

Sumit Kumar

Full-Stack Engineer at Optmyzr

This was targeted at a perfect level for me, as someone who had exposure to these topics, had done some fiddling with helmet previously in node, but this was a great succinct guide to quickly and effectively teach "what" and "why".

Luke Rasmussen

Luke Rasmussen

Software Engineer

2022 OpenJS World, Liran received the Pathfinder Award for Security

Liran is a tireless advocate for security in the JS ecosystem. He works hard to build bridges, educate developers about security issues, and support Open Source projects working to improve their security posture. Liran has served on the Node security team and is always available to support developers!

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OpenJS Foundation
  • 600+

    Subscribers to Liran Tal's Node.js Security newsletter

  • 430+

    JavaScript developers bought one of Liran's Node.js Secure Coding books

  • 15.5%

    Growth of CVE security reports published in 2023 vs prior year. Security is a growing concern for all developers alike (source: cve.org).

  • 4x

    2024 more than doubled its CVE security disclosures since 2021. More software leads to more bugs, which leads to more security bugs (source: cve.org)

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About Liran Tal

Liran Tal is an accomplished software developer, respected security researcher, and prominent advocate for open source software in the JavaScript community. As an experienced author and educator, Liran has written several widely respected books on software security. These include "Serverless Security" published by O'Reilly, as well as the self-published titles "Essential Node.js Security" and "Web Security: Learning HTTP Security Headers". Liran's leadership in open source security includes significant contributions to OWASP projects, recording supply chain security incidents at the CNCF, and various OpenSSF initiatives. Currently, Liran is a developer advocate at Snyk where he empowers developers with the knowledge and tools needed to build and deploy secure software.

Security Analyst for the Node.js Foundation 🟩

In his role as a security analyst in the Node.js Foundation's Security Working Group, Liran reviewed hundreds of vulnerability reports for npm packages and established processes for responsible security disclosures and vulnerability triage 🏴‍☠️.

Recipient of the Pathfinder for Security Award 🎖️

Honored by the OpenJS Foundation with the Pathfinder for Security Award, Liran is recognized for his work advancing Node.js security.

Education is a core practice

Passionate about educating developers on application security and secure coding practices, Liran is a world-wide international speaker, workshop instructor, and author of several books on the subject. He occasionally speaks on software security topics at academic institutions, such as presenting to students at the Electrical and Computer Engineering School at Purdue University 🎓.

I'm a Security Researcher

An accomplished security researcher, Liran has disclosed security vulnerabilities in various open source software projects, including being credited with CVEs to his name for vulnerabilities in npm packages with millions of downloads.

Award-winning GitHub Star 🌟

Liran received the GitHub Star recognition award from GitHub for his work educating and inspiring developers and actively advocating for web security.

Acclaimed Recognition at Black Hat

Liran's discovery in supply chain security research, including Lockfile Injection, was presented at the prestigious Black Hat Europe 2021 cybersecurity conference. Liran is also the creator of several developer security tooling projects such as npq, is-website-vulnerable, and snync, which help developers and enterprises defend against dependency confusion attacks.

Frequently
asked questions

Bun Security Essentials is a deep-dive guide to securing your Bun applications, on specifically curated application security topics and security domain most relevant to software developers. It presents anti-patterns you should avoid as a developer and provides a collection of security best practices to follow, tips, and security considerations for securing your Bun applications.

Secure the JavaScript Bun :-)

Everyone knows JavaScript, but not everyone knows how to secure it. Learn how to secure your Bun applications with a comprehensive educational course.