Malicious Code Injection in Necessary Leopard 0xRequest Package
Summary
MAL-2025-106242: Malicious code in necessary_leopard_0xrequest (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The necessary_leopard_0xrequest package is part of the npm ecosystem, primarily used for handling HTTP requests in JavaScript applications. However, it has been identified as part of a malicious campaign that aims to inflate developer reputation scores through the creation of derivative packages. This package, like others in the campaign, contains scripts that automatically publish variants with altered metadata, compromising the integrity of the npm registry.
Vulnerability Detail
The vulnerability originates from the malicious intent behind the necessary_leopard_0xrequest package, which is linked to a broader scheme involving the tea.xyz token reward campaign. The package includes scripts that modify the package.json file by removing private flags, changing version numbers, and generating random package names. This behavior leads to the pollution of the npm registry and can potentially expose applications to further vulnerabilities and malicious code.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall necessary_leopard_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 avoid using the necessary_leopard_0xrequest package altogether and look for alternative packages that provide similar functionality without the associated risks. Always ensure to review the security of any package before including it in your project.
Conclusion
The necessary_leopard_0xrequest package poses a significant security risk due to its malicious code injection capabilities. It is essential to remove this package from your project and monitor for any potential vulnerabilities using tools like Vulert. Always prioritize security when selecting packages for your applications.
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FAQ
It is an npm package used for handling HTTP requests, but it has been identified as malicious.
It can lead to the injection of malicious code, compromising the security and integrity of your application.
No, there is currently no patched version available for the necessary_leopard_0xrequest package.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time using just your package-lock.json file.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.
