Malicious Code Injection in olympic_silverfish_z3n Package
Summary
MAL-2025-106723: Malicious code in olympic_silverfish_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The olympic_silverfish_z3n package is part of the npm ecosystem, which is widely used for JavaScript package management. This package is associated with the tea.xyz token reward campaign, which has been linked to a series of malicious packages that flood the npm registry. These packages are designed to manipulate developer reputation scores by automatically generating and publishing derivative packages with randomized names.
Vulnerability Detail
The vulnerability in the olympic_silverfish_z3n package stems from its malicious code that modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior is intended to inflate developer reputation scores and pollute the npm registry with numerous derivative packages. The origin of this vulnerability is tied to the tea.xyz token reward campaign, which has exploited npm's package management system for malicious purposes.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall olympic_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, you can prevent the installation of this package by using npm's package-lock.json file to monitor dependencies. Additionally, consider using tools like Vulert to monitor for vulnerabilities in your project. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner without needing to sign up.
Conclusion
The olympic_silverfish_z3n package poses a significant security risk due to its malicious code designed to manipulate npm's package management system. It is essential to remove this package and monitor your project for vulnerabilities to maintain security and integrity.
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FAQ
The olympic_silverfish_z3n package is an npm package associated with the tea.xyz token reward campaign, which is known for flooding the npm registry with malicious packages.
This vulnerability can lead to the pollution of your npm registry with numerous derivative packages, potentially harming your project's reputation and security.
You should remove the olympic_silverfish_z3n package from your project immediately and monitor for any updates or patches.
Yes, Vulert can monitor your project for open-source vulnerabilities in real-time using just the package-lock.json file. You can check for vulnerabilities without any installation.
Regularly update your npm packages, use tools like Vulert for monitoring vulnerabilities, and review your dependencies for any malicious packages.
