Malicious Code Injection in mahnud-unagi-goi: A Threat to npm Package Integrity
Summary
MAL-2025-159119: Malicious code in mahnud-unagi-goi (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
mahnud-unagi-goi is an npm package that has been identified as part of a malicious campaign targeting the npm registry. This package is associated with the tea.xyz token reward initiative, which aims to inflate developer reputation scores through the automatic generation and publication of derivative packages. The malicious nature of this package compromises the integrity of the npm ecosystem.
Vulnerability Detail
The vulnerability stems from the package's inclusion in a malicious campaign that utilizes autopublish scripts to generate and publish numerous derivative packages with randomized names. These scripts modify the package.json file to remove private flags, alter version numbers, and continuously republish variants, leading to pollution of the npm registry. This not only affects the reputation of legitimate developers but also poses a risk of dependency confusion and potential exploitation of applications relying on these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mahnud-unagi-goiIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
Currently, there are no specific workarounds to mitigate the effects of this vulnerability other than removing the affected package and avoiding similar packages that may be part of the malicious campaign.
Conclusion
The mahnud-unagi-goi package poses a significant threat to the integrity of the npm ecosystem due to its malicious nature. It is essential for developers to remain vigilant, regularly audit their dependencies, and utilize tools like Vulert to monitor for vulnerabilities. Immediate action should be taken to remove any affected packages to safeguard applications.
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FAQ
mahnud-unagi-goi is an npm package linked to a malicious campaign aimed at inflating developer reputation scores through the automatic publication of derivative packages.
The vulnerability can lead to dependency confusion, where your application may inadvertently rely on malicious packages, compromising its security and integrity.
You should immediately uninstall the mahnud-unagi-goi package and review your dependencies for any other potentially malicious packages.
You can use tools like Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time without requiring code access or installation.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
