Malicious Code Injection in variable_sheep_z3n: A Threat to npm Ecosystem
Summary
MAL-2025-97226: Malicious code in variable_sheep_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'variable_sheep_z3n' is part of a malicious campaign targeting the npm ecosystem, specifically linked to the tea.xyz token reward initiative. This package is designed to manipulate the npm registry by generating and publishing numerous derivative packages with altered names and metadata. Its primary function is to inflate developer reputation scores through deceptive practices, posing a significant risk to the integrity of the npm registry.
Vulnerability Detail
The vulnerability in 'variable_sheep_z3n' originates from its malicious design, which includes scripts that modify the package.json file to remove private flags and change version numbers. This allows the package to continuously republish variants with random names, effectively polluting the npm registry. The ramifications of this vulnerability include potential security risks for developers who unknowingly use these packages, as well as damage to the overall trustworthiness of the npm ecosystem.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall variable_sheep_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, you can avoid using the 'variable_sheep_z3n' package and instead look for alternative packages that provide similar functionality without the associated risks. Additionally, you can monitor your project's dependencies using tools like Vulert, which can alert you to open-source vulnerabilities in real-time.
Conclusion
The 'variable_sheep_z3n' package poses a significant threat to the npm ecosystem due to its malicious intent to manipulate the registry. It is crucial for developers to be aware of such vulnerabilities and take proactive measures to protect their projects. Regular monitoring and prompt action can help mitigate the risks associated with malicious packages.
See every vulnerability recorded for variable_sheep_z3n →
FAQ
It is a malicious npm package linked to a token reward campaign that manipulates the npm registry.
Using this package can compromise your project's security and contribute to the pollution of the npm registry.
You should remove the package immediately and monitor for any updates or patches.
You can use Vulert to monitor your package-lock.json file for real-time alerts on open-source vulnerabilities.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities without any signup.
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Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
