Malicious Code Injection in mand-no-mutunau: npm Package Vulnerability
Summary
MAL-2025-159576: Malicious code in mand-no-mutunau (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The 'mand-no-mutunau' package is part of the npm ecosystem, which is widely used for JavaScript package management. This package has been identified as part of a malicious campaign that aims to inflate developer reputation scores through the generation of derivative packages. The vulnerability stems from the package's design, which allows for the execution of harmful scripts that can alter package metadata and republish malicious variants.
Vulnerability Detail
The vulnerability in 'mand-no-mutunau' is characterized by the presence of 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 associated with the tea.xyz token reward campaign, which aims to manipulate the npm registry by flooding it with derivative packages. The implications of this vulnerability include potential exposure of sensitive data, reputation damage for developers, and pollution of the npm registry with malicious packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mand-no-mutunauIf 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 'mand-no-mutunau' package from your project by executing the command: 'npm uninstall mand-no-mutunau'. This will prevent the execution of any malicious scripts associated with the package until a fix is applied.
Conclusion
The 'mand-no-mutunau' package has been identified as containing malicious code that poses significant risks to developers and the npm ecosystem. It is crucial to take immediate action by updating or uninstalling the package to safeguard your projects. Utilizing tools like Vulert can help monitor and alert for vulnerabilities in real-time.
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FAQ
The vulnerability involves malicious code that modifies package metadata and republished variants to manipulate the npm registry.
You can use Vulert's playground at Vulert Scanner to check if your application is affected without needing to sign up.
Using this package can lead to exposure of sensitive data, damage to your developer reputation, and pollution of the npm registry.
Yes, Vulert offers real-time monitoring and alerts for open-source vulnerabilities using just your package-lock.json file.
If an immediate update is not possible, consider uninstalling the package as a temporary measure to mitigate risks.
