Malicious Code Vulnerability in structural_narwhal_z3n Package
Summary
MAL-2025-96823: Malicious code in structural_narwhal_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The structural_narwhal_z3n package is part of the npm ecosystem and has been identified as a component of a token reward campaign associated with tea.xyz. This package is designed to facilitate the automatic generation and publication of derivative packages, which can inflate developer reputation scores. However, it has been compromised to include malicious scripts that alter package metadata and republish variants to the npm registry, potentially affecting developers and users relying on this package.
Vulnerability Detail
The vulnerability stems from the presence of malicious code within the structural_narwhal_z3n package. This code modifies the package.json file to remove private flags, alters version numbers, and generates random package names, leading to the pollution of the npm registry. The malicious payload is part of a broader scheme to exploit the npm ecosystem, which can result in reputational damage for developers and security risks for users who inadvertently install these compromised packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall structural_narwhal_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 structural_narwhal_z3n package and 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 vulnerabilities in real-time by analyzing your package-lock.json file.
Conclusion
The structural_narwhal_z3n package contains malicious code that poses a significant risk to developers and users within the npm ecosystem. It is crucial to uninstall this package and monitor your project for vulnerabilities. Utilizing tools like Vulert can help maintain the security of your applications.
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FAQ
It is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores through automated publishing.
The malicious code modifies your package.json file, potentially leading to security vulnerabilities and the pollution of the npm registry with compromised packages.
You should uninstall the structural_narwhal_z3n package immediately and monitor your project for any unusual behavior.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
Regularly monitor your dependencies using tools like Vulert, keep your packages updated, and review package sources before installation.
