Malicious Code Injection in mahnud-fuaf-goi: A Threat to npm Packages
Summary
MAL-2025-159011: Malicious code in mahnud-fuaf-goi (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package 'mahnud-fuaf-goi' is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to manipulate the npm registry by generating and publishing derivative packages with randomized names. The primary function of these packages is to inflate developer reputation scores for rewards associated with the tea protocol, but they also pose significant risks to the integrity of the npm ecosystem.
Vulnerability Detail
The vulnerability in 'mahnud-fuaf-goi' originates from its malicious payload, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior leads to the continuous republishing of variants, which pollutes the npm registry and can compromise the security of applications relying on these packages. The malicious scripts (auto.js, autopublish.js, etc.) are designed to automate this process, making it difficult for developers to track and mitigate the impact.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mahnud-fuaf-goiIf 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 malicious package by using npm's package-lock.json to monitor dependencies. Additionally, consider using the following command to audit your packages for vulnerabilities: npm audit.
Conclusion
The 'mahnud-fuaf-goi' package represents a significant threat to the npm ecosystem due to its malicious behavior aimed at manipulating developer reputation scores. It is essential for developers to remain vigilant, regularly audit their dependencies, and utilize tools like Vulert to monitor for vulnerabilities. Taking proactive steps can help mitigate the risks associated with such malicious packages.
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FAQ
'mahnud-fuaf-goi' is an npm package that has been identified as malicious, designed to manipulate the npm registry for fraudulent purposes.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Check your application against the vulnerability using the Vulert playground at Vulert Scanner.
The risks include potential exposure to malicious code, compromised application integrity, and pollution of the npm registry, which can affect other developers.
Regularly audit your dependencies, use tools like Vulert for monitoring, and avoid installing packages from untrusted sources.
Immediately remove 'mahnud-fuaf-goi' from your project and check for any other affected packages. Update your dependencies to secure versions.
