Malicious Code Vulnerability in polymeria-midodf: Exploitation of npm Packages
Summary
MAL-2025-164498: Malicious code in polymeria-midodf (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The polymeria-midodf package is part of the npm ecosystem, which is widely used for JavaScript development. This package is intended to facilitate specific functionalities within applications, but it has been compromised. The vulnerability stems from its association with a malicious campaign that aims to manipulate the npm registry by generating and publishing derivative packages with altered metadata.
Vulnerability Detail
The vulnerability in polymeria-midodf originates from its involvement in a malicious campaign that floods the npm registry with fake packages. This campaign modifies the package.json file to remove private flags, alters version numbers, and creates random package names, which can lead to reputation inflation for malicious actors. The continuous republishing of these variants pollutes the npm registry, making it difficult for developers to trust legitimate packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall polymeria-midodfIf 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 polymeria-midodf package from your project if it is not essential. You can do this by executing the command: 'npm uninstall polymeria-midodf'. Additionally, consider using tools like Vulert to monitor your package-lock.json for vulnerabilities.
Conclusion
The polymeria-midodf package has been identified as having a serious vulnerability due to its involvement in a malicious npm campaign. It is essential to take immediate action by updating or removing the package and utilizing monitoring tools like Vulert to safeguard your applications from future vulnerabilities.
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FAQ
polymeria-midodf is an npm package used in JavaScript applications, but it has been compromised and is associated with a malicious campaign.
This vulnerability can lead to the pollution of the npm registry, making it difficult to trust legitimate packages and potentially exposing your application to further security risks.
You should uninstall the package immediately and check for any updates or patches. Use 'npm uninstall polymeria-midodf' to remove it.
You can use Vulert, which monitors your package-lock.json for open-source vulnerabilities in real-time. You can check if your application is affected by visiting the Vulert playground at Vulert Scanner.
Regularly update your dependencies, use tools like Vulert for monitoring, and review package sources before installation to ensure they are trustworthy.
