Malicious Code Injection in senior_ant_z3n Package - npm Vulnerability
Summary
MAL-2025-90460: Malicious code in senior_ant_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The senior_ant_z3n package is part of the npm ecosystem, often utilized in JavaScript projects. It is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with numerous packages. This package, like others in the campaign, is designed to manipulate developer reputation scores by publishing derivative packages with randomized names.
Vulnerability Detail
The vulnerability in the senior_ant_z3n package stems from its malicious code that modifies the package.json file. It removes private flags, alters version numbers, and generates random package names, leading to the continuous republishing of these variants. This behavior not only pollutes the npm registry but also poses risks 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 senior_ant_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 prevent the installation of the senior_ant_z3n package by adding it to your project's .npmrc file with the following line: 'package-lock=false'. This will stop npm from installing this package until a fix is available.
Conclusion
The senior_ant_z3n package contains malicious code that poses significant risks to developers and their applications. It is crucial to remove this package and monitor for any updates. Utilizing tools like Vulert can help in identifying and managing vulnerabilities in your projects effectively.
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FAQ
The senior_ant_z3n package is an npm package associated with the tea.xyz token reward campaign, which has been flagged for malicious behavior.
The malicious code modifies your package.json file, potentially leading to security vulnerabilities and the pollution of the npm registry.
You should remove the senior_ant_z3n package from your project immediately and monitor for any updates or patches.
Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json file.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
