Malicious Code Injection in voluminous_silverfish_z3n Package
Summary
MAL-2025-91985: Malicious code in voluminous_silverfish_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The voluminous_silverfish_z3n package is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to inflate developer reputation scores by automatically generating and publishing derivative packages with randomized names. This behavior poses a significant risk as it can lead to the proliferation of malicious code within the npm ecosystem.
Vulnerability Detail
The vulnerability in the voluminous_silverfish_z3n package stems from its malicious payload, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior not only compromises the integrity of the npm registry but also allows for the automatic republishing of these malicious variants, leading to potential exploitation of developers and users who may inadvertently install these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall voluminous_silverfish_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, avoid using the voluminous_silverfish_z3n package and monitor your dependencies for any signs of malicious activity. You can also use tools like Vulert to check for vulnerabilities in your package-lock.json file.
Conclusion
The voluminous_silverfish_z3n package poses a significant security risk due to its malicious behavior of modifying package files and republishing variants. It is crucial to remove this package from your project and monitor your dependencies for any vulnerabilities to maintain the integrity of your software.
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FAQ
It is an npm package that is part of a malicious campaign to inflate developer reputation scores by flooding the npm registry with derivative packages.
The vulnerability can lead to the installation of malicious code, compromising your project's security and potentially affecting users.
You should immediately uninstall the package using the command npm uninstall voluminous_silverfish_z3n to mitigate any risks.
Yes, you can use Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time without requiring code access or installation.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.
