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npm · Malicious package advisory

Malware

xo-typescript

MAL-2025-39911

Malicious code in xo-typescript (npm)

Details

The package xo-typescript was found to contain malicious code.

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## Source: google-open-source-security (c508442ceff167e8877a2a098d7b10d4efae92ff3a43987dc031b12771954a4c)
This package installs a dependency hosted on a custom domain that runs an
info stealer during installation. The info stealer focuses on stealing
npm, git, and other CI/CD related tokens.

Compromised versions (1)

  • 1.0.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.