Malicious Code Injection in lesser_peafowl-notthedev Package
Summary
MAL-2025-105091: Malicious code in lesser_peafowl-notthedev (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The lesser_peafowl-notthedev package is part of the npm ecosystem, which is widely used for JavaScript package management. This package is suspected to be involved in a token reward campaign that has led to the proliferation of malicious packages on npm. Its primary function is to facilitate the development and distribution of JavaScript applications, but it has been compromised to serve malicious purposes.
Vulnerability Detail
The vulnerability in the lesser_peafowl-notthedev package originates from its association with a malicious campaign that floods the npm registry with derivative packages. These packages contain scripts that automatically modify the package.json file to remove private flags, change version numbers, and generate random package names. This behavior not only inflates developer reputation scores for token rewards but also pollutes the npm registry, potentially leading to security risks for users who unknowingly install these compromised packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall lesser_peafowl-notthedevIf 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 remove the lesser_peafowl-notthedev package from your project by executing the command: npm uninstall lesser_peafowl-notthedev. This will prevent any malicious code from executing until a secure version is available.
Conclusion
The lesser_peafowl-notthedev package has been identified as containing malicious code that can compromise the integrity of applications using it. Users are advised to update or remove the package to protect their projects from potential threats. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.
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FAQ
It is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores through the publication of compromised packages.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. By checking your package-lock.json file, you can determine if your application is affected by this vulnerability.
Using compromised packages can lead to security vulnerabilities, data breaches, and unauthorized access to your application, potentially compromising user data and application integrity.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
If you cannot update the package right away, consider removing it from your project as a temporary measure to mitigate the risk of malicious code execution.
