10/08/2026
A self-propagating worm has infected more than 400 npm packages, the shared building blocks that sit inside millions of JavaScript projects. Microsoft Threat Intelligence, which named the campaign ChainDrop, reported on 4 August 2026 that the malware steals developer and cloud credentials, then uses those stolen keys to publish poisoned versions of still more packages on its own.
Affected code includes widely used utilities such as keyv, flat-cache and cache-manager. Any organisation whose developers or build systems installed a bad version may have leaked npm, GitHub, cloud and secret-store credentials. The lesson: one open-source dependency, compromised at the source, can reach every secret downstream.
Here we explain you what happened and why it matters for third-party risk management
https://zurl.co/u494i
A self-propagating worm named ChainDrop poisoned 400+ npm packages, including keyv and flat-cache, stealing developer and cloud credentials. Why it is a third-party risk.