Malicious Code Injection in polymera-manuyat-muniosps Package
Summary
MAL-2025-164479: Malicious code in polymera-manuyat-muniosps (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The polymera-manuyat-muniosps package is part of the npm ecosystem, which is widely used for JavaScript development. This package has been identified as part of a malicious campaign that aims to inflate developer reputation scores through the automatic generation and publication of derivative packages. The malicious nature of this package poses significant risks to developers and their projects.
Vulnerability Detail
The vulnerability stems from the package being involved in a token reward campaign that floods the npm registry with malicious packages. It contains scripts that modify the package.json file to remove private flags, change version numbers, and generate random package names. This behavior not only pollutes the npm registry but also compromises the integrity of projects that depend on this package, potentially leading to further exploitation.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall polymera-manuyat-muniospsIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the polymera-manuyat-muniosps package and any of its derivatives. Additionally, consider using package-lock.json to monitor your dependencies for vulnerabilities. You can also utilize tools like Vulert to check if your application is affected by this vulnerability without requiring code access or installation.
Conclusion
The polymera-manuyat-muniosps package presents a significant security risk due to its involvement in a malicious campaign. It is essential for developers to take immediate action by removing the package and monitoring their projects for vulnerabilities. Utilizing tools like Vulert can aid in maintaining the security of your applications.
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FAQ
It is an npm package that has been identified as part of a malicious campaign to inflate developer reputation scores.
The vulnerability can lead to the pollution of the npm registry and compromise the integrity of your project's dependencies.
You should remove the polymera-manuyat-muniosps package from your project and monitor for any updates or patches.
Yes, you can use Vulert's playground to check for vulnerabilities in your application using package-lock.json.
Regularly monitor your dependencies, use tools like Vulert, and stay updated on security advisories for the packages you use.
