Credential Stealer in data-pipeline-testmetest: A Malicious npm Package
Summary
MAL-2026-18177: Malicious code in data-pipeline-testmetest (npm). Affects data-pipeline-testmetest versions 2.0.1. No fix is published. How to fix ↓
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Background
data-pipeline-testmetest is an npm package designed for testing data pipelines. It is intended to provide utilities for developers working with data processing. However, version 2.0.1 of this package has been identified as malicious, containing code that executes harmful actions upon installation, compromising user credentials and system integrity.
Vulnerability Detail
The vulnerability arises from the package's use of a binding.gyp file that executes an obfuscated loader during the installation process. This loader decrypts a large payload that steals sensitive credentials from various platforms, including GitHub and npm, and commits them to a public repository created in the victim's GitHub account. The malicious code also installs a service that can delete user files if a stolen GitHub token is revoked, posing significant risks to users' data and security.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall data-pipeline-testmetestIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, users can remove the malicious script by deleting the following files before revoking any GitHub tokens: rm -rf ~/.local/bin/net-health-checker.sh and its associated systemd unit or LaunchAgent.
Conclusion
The data-pipeline-testmetest package version 2.0.1 contains a severe vulnerability that can compromise user credentials and system integrity. Immediate action is required to mitigate risks, including uninstalling the package and monitoring for any unauthorized access.
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FAQ
It is intended to provide utilities for testing data pipelines in software development.
The vulnerability executes malicious code during installation, which steals credentials and can delete user files.
Uninstall the package immediately and check for any unauthorized access to your accounts.
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