There is an ongoing npm security event.

At time of writing, Eleventy core and our official suite of plugins are unaffected.

🚨 A new wave of the Shai-Hulud supply chain attack has hit npm, impacting packages across widely used projects from AsyncAPI, ENS, Postman, PostHog, and Zapier. Attackers added a malicious preinstall script following account compromise. The investigation is ongoing:

socket.dev/blog/shai-hu...

— Socket (November 24, 2025 at 1:38:09 PM UTC)