bleepingcomputer.com -
npm has taken down all versions of the real Stylus library and replaced them with a "security holding" page, breaking pipelines and builds worldwide that rely on the package.

A security placeholder webpage is typically displayed when malicious packages and libraries are removed by the admins of npmjs.com, the world's largest software registry primarily used for JavaScript and Node.js development.

But that isn't quite the case for Stylus: a legitimate "revolutionary" library receiving 3 million weekly downloads and providing an expressive way for devs to generate CSS.

Stylus 'accidentally banned by npmjs'
As of a few hours ago, npmjs has removed all versions of the Stylus package and published a "security holding package" page in its place.
"Stylus was accidentally banned by npmjs," earlier stated Stylus developer Lei Chen in a GitHub issue. The project maintainer is "currently waiting for npmjs to restore access to Stylus."

"I am the current maintainer of Stylus. The Stylus library has been flagged as malicious..., which has caused many [libraries] and frameworks that depend on Stylus to fail to install," also posted Chen on X (formerly Twitter). "Please help me retweet this msg in the hope that the npmjs official team will take notice of this issue."