MAL-2025-47310 Malicious code in ember-url-hash-polyfill (npm)

Malicious package Published
Package
ember-url-hash-polyfill
Registry
npm

What is MAL-2025-47310?

MAL-2025-47310 is a malicious package in ember-url-hash-polyfill, published on 16 Sep 2025.

Official description

The package was compromised and malicious code added.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

This package was compromised by the Shai-Hulud NPM worm. The malicious payload steals tokens and credentials and publishes them to GitHub before propogating itself to NPM packages the user owns.

What should I do about MAL-2025-47310?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

Also known as GHSA-wxvv-c37v-jfmc.

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