Malicious Code Injection in munir-butya-mzisun: A Threat to npm Ecosystem
Summary
MAL-2025-160881: Malicious code in munir-butya-mzisun (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The munir-butya-mzisun package is part of the npm ecosystem, which is widely used for JavaScript package management. This package, like many others, is intended to facilitate the development and distribution of JavaScript applications. However, it has been identified as part of a malicious campaign that floods the npm registry with harmful packages designed to manipulate developer reputation scores and disrupt the integrity of the registry.
Vulnerability Detail
The vulnerability in munir-butya-mzisun arises from its association with a malicious campaign that employs autopublish scripts to generate and publish numerous derivative packages with randomized names. This behavior not only inflates developer reputation scores for token rewards but also modifies the package.json file to remove private flags, changes version numbers, and continuously republishes variants, polluting the npm registry. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which exploits npm's publishing mechanisms.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall munir-butya-mzisunIf 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 munir-butya-mzisun package and any other packages that may be part of the same malicious campaign. Monitor your package dependencies closely and consider using tools like Vulert to assess your project's vulnerability status.
Conclusion
The munir-butya-mzisun package poses a significant threat to the npm ecosystem due to its malicious behavior aimed at manipulating developer reputation scores. It is crucial for developers to be vigilant about their dependencies, regularly update their packages, and utilize tools like Vulert to monitor for vulnerabilities.
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FAQ
The munir-butya-mzisun package is an npm package that has been identified as part of a malicious campaign to manipulate developer reputation scores.
This vulnerability can lead to the pollution of the npm registry, potentially compromising the integrity of your project's dependencies and affecting its security.
You should uninstall the munir-butya-mzisun package immediately and review your project's dependencies for any other potentially harmful packages.
You can use tools like Vulert, which monitors your package-lock.json file for vulnerabilities in real-time without requiring installation.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
