Malicious Code Injection in silly_leopon_0xrequest Package
Summary
MAL-2025-108686: Malicious code in silly_leopon_0xrequest (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The silly_leopon_0xrequest package is part of the npm ecosystem, often utilized for various JavaScript functionalities. However, it has been identified as part of a malicious campaign that floods the npm registry with derivative packages. This package is designed to manipulate developer reputation scores through automated publishing scripts, which can lead to significant security risks.
Vulnerability Detail
The vulnerability in the silly_leopon_0xrequest package stems from its association with a malicious campaign that modifies the package.json file to remove private flags and alters version numbers. It generates random package names and continuously republishes variants, polluting the npm registry. This behavior can lead to unauthorized access, reputation damage for developers, and potential exploitation of applications relying on this package.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall silly_leopon_0xrequestIf 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 lock dependencies. Additionally, consider using the following command to audit your packages for vulnerabilities: npm audit.
Conclusion
The silly_leopon_0xrequest 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 and monitor your project for vulnerabilities to maintain application security.
See every vulnerability recorded for silly_leopon_0xrequest →
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 vulnerability can lead to unauthorized modifications of your package.json file, potentially exposing your application to security risks and reputation damage.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without any signup.
It is advisable to remove the silly_leopon_0xrequest package immediately and audit your project for any other vulnerabilities.
Yes, tools like Vulert can help monitor your dependencies and alert you to vulnerabilities in real-time using just your package-lock.json.
