npm axios attack - What happened and how to protect your supply chain

100M+ weekly downloads. One compromised maintainer account. A remote access trojan in two active release branches.

This is a 30-minute breakdown of the Axios npm supply chain attack – how it happened, why it was hard to detect, and what any engineering team can do right now to reduce exposure. Nigel Douglas, Head of Developer Relations at Cloudsmith, is joined by Jenn Gile, co-founder of Open Source Malware, a community-driven threat intelligence platform focused on malicious open source packages.

Together they walk through the full attack chain: credential compromise, account takeover, transitive dependency poisoning via plain-crypto-js, and the base64-encoded post-install script that helped the payload evade early detection. They also cover the threat actor attribution, the indicators of compromise, and what the blast radius looks like when a top-15 npm package is weaponized.

You'll learn about practical defenses you can put in place today – including age-based package cooldown policies, dependency pinning, credential rotation, and how to wire threat intelligence feeds like OSV and Open Source Malware into automated quarantine workflows.

Whether or not you use Axios, the attack pattern applies to any team consuming packages from public registries.

0:00 – What Is the Axios attack? Live briefing introduction

2:30 – Why Axios? Popularity, blast radius, and account takeover explained

6:35 – Defining malware and attack motivations

9:10 – How the payload was hidden in a transitive dependency

14:40 – Live demo: Detecting and quarantining a malicious package in Cloudsmith

21:03 – Why "verify then trust" is critical when using OSS

26:51 – Q&A

This video covers npm supply chain security, open source malware detection, software composition analysis, transitive dependency attacks, account takeover exploits, and how to build automated package policy controls for DevOps and platform engineering teams.

🔗 Book a demo: https://cloudsmith.com/book-a-demo
🔗 Free trial: https://app.cloudsmith.com/signup
🔗 Open Source Malware threat feed: https://opensourcemalware.com/npm/axios

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