Upwind identified a malicious release of keyv@6.0.0 that harvested AWS, GitHub, and npm credentials via a hidden preinstall script. With 154 million weekly downloads, the compromise had ecosystem-wide blast radius.

A Keyv-linked npm worm poisoned 353 versions across 79 package names, stealing developer and CI credentials while repository hooks remained present.

Upwind identified a malicious release of keyv@6.0.0 that harvested AWS, GitHub, and npm credentials via a hidden preinstall script. With 154 million weekly downloads, the…