Malicious Code Injection in implicit_bat_z3n Package - npm Vulnerability Summary
Summary
MAL-2025-103989: Malicious code in implicit_bat_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The implicit_bat_z3n package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the automatic generation and publication of derivative packages, which are often used to inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that compromises its integrity and the integrity of the npm registry.
Vulnerability Detail
The vulnerability in the implicit_bat_z3n package originates from its association with a campaign that floods the npm registry with malicious packages. The malicious code modifies the package.json file to remove private flags, alters version numbers, and generates random package names, leading to the continuous republishing of these variants. This not only pollutes the npm registry but also poses a risk to developers who may unknowingly use these compromised packages, potentially leading to security breaches in their applications.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall implicit_bat_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 remove the implicit_bat_z3n package from your project by executing the following command: npm uninstall implicit_bat_z3n. This will help mitigate the risk until a secure version is available.
Conclusion
The implicit_bat_z3n package has been identified as containing malicious code that poses significant risks to developers and their applications. It is crucial to take immediate action by uninstalling the package and monitoring for updates. Utilizing tools like Vulert can help in identifying and mitigating such vulnerabilities in the future.
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FAQ
The implicit_bat_z3n package is an npm package involved in the tea.xyz token reward campaign, which has been found to contain malicious code.
The malicious code modifies your package.json file, removes private flags, and generates random package names, which can lead to security vulnerabilities in your project.
If you have installed the implicit_bat_z3n package, you should uninstall it immediately and monitor for any updates or patches.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. You can check your application using the Vulert playground without any signup.
To prevent future vulnerabilities, regularly audit your dependencies, use tools like Vulert for monitoring, and stay updated on security advisories related to your packages.
