Malicious Code Injection in jaja-mie91-ruro: A Threat to npm Packages
Summary
MAL-2025-104510: Malicious code in jaja-mie91-ruro (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The package jaja-mie91-ruro is part of the npm ecosystem, which is widely used for JavaScript package management. This package is associated with the tea.xyz token reward campaign, which has been known to flood the npm registry with malicious packages. These packages often contain scripts designed to manipulate package metadata and inflate developer reputation scores, posing significant risks to developers and users alike.
Vulnerability Detail
The vulnerability in jaja-mie91-ruro stems from its malicious code that modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior is part of a broader scheme to pollute the npm registry by continuously republishing these variants, which can lead to a compromised development environment 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 jaja-mie91-ruroIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, avoid using the jaja-mie91-ruro package and consider using alternative packages that provide similar functionality without the associated risks. Always review package dependencies and their sources before installation.
Conclusion
The jaja-mie91-ruro package poses a significant threat due to its malicious code that alters package metadata and pollutes the npm registry. It is crucial for developers to remove this package and monitor their projects for vulnerabilities using tools like Vulert to ensure the security of their applications.
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FAQ
jaja-mie91-ruro is an npm package that has been identified as malicious, part of a campaign to manipulate npm registry data and inflate developer reputation scores.
The vulnerability can lead to the introduction of malicious code in your application, potentially compromising its integrity and security.
You should uninstall the jaja-mie91-ruro package immediately and check your project for any dependencies that may be affected.
Yes, Vulert can monitor your project for open-source vulnerabilities using just the package-lock.json file, providing real-time alerts.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
