Malicious Code Injection in silly_walrus_z3n Package
Summary
MAL-2025-90500: Malicious code in silly_walrus_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The silly_walrus_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 can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious scripts that compromise its integrity and the security of the npm registry.
Vulnerability Detail
The vulnerability in the silly_walrus_z3n package originates from its inclusion in a campaign that floods the npm registry with malicious packages. These packages contain scripts that modify the package.json file to remove private flags, alter version numbers, and generate random package names. This behavior leads to the pollution of the npm registry and can potentially harm developers by affecting their reputation and the security of their applications.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall silly_walrus_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, you can manually remove the package from your project by executing the following command: npm uninstall silly_walrus_z3n. Additionally, consider using tools like Vulert to monitor your project for vulnerabilities in real-time.
Conclusion
The silly_walrus_z3n package has been identified as containing malicious code that compromises the integrity of the npm registry. It is crucial for developers to remove this package from their projects and monitor for any vulnerabilities using tools like Vulert. Staying informed and proactive can help maintain the security of your applications.
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FAQ
silly_walrus_z3n is an npm package associated with a token reward campaign that generates and publishes derivative packages.
The vulnerability can lead to the pollution of the npm registry and may compromise the security and reputation of your project.
You should uninstall the silly_walrus_z3n package immediately and monitor your project for any further vulnerabilities.
Currently, there is no specific patch for the silly_walrus_z3n package, but you should keep an eye on the npm registry for updates.
You can use Vulert, which monitors your package-lock.json for vulnerabilities in real-time. You can check your application using the Vulert playground without any signup.
