Malicious Code Injection in tusya-fsd-frseaf Package: A Threat to npm Ecosystem
Summary
MAL-2025-169418: Malicious code in tusya-fsd-frseaf (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The tusya-fsd-frseaf package 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 linked to the proliferation of malicious packages aimed at inflating developer reputation scores. The vulnerability stems from the package's design, which allows for the automatic generation and publication of derivative packages, potentially leading to significant pollution of the npm registry.
Vulnerability Detail
The vulnerability in the tusya-fsd-frseaf package involves 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 intended to create numerous derivative packages that clutter the npm registry and can lead to security risks for developers who unknowingly incorporate these packages into their projects. The malicious payload is part of a broader campaign that exploits the npm ecosystem for token rewards, making it a significant concern for developers relying on npm for package management.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall tusya-fsd-frseafIf 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 tusya-fsd-frseaf package altogether. If it is already included in your project, consider removing it from your package.json file and running 'npm uninstall tusya-fsd-frseaf' to eliminate any potential threats.
Conclusion
The tusya-fsd-frseaf package poses a significant risk due to its malicious code that modifies package metadata and floods the npm registry with derivative packages. Developers should take immediate action to remove this package and monitor their dependencies for vulnerabilities to maintain the integrity of their projects.
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FAQ
The tusya-fsd-frseaf package is an npm package associated with a token reward campaign that has been identified as malicious due to its behavior of generating and publishing derivative packages.
This vulnerability can lead to the pollution of the npm registry, potentially introducing security risks and instability in your project if you inadvertently use affected packages.
If you have used the tusya-fsd-frseaf package, it is crucial to remove it from your project and update your dependencies to ensure you are not affected by the malicious code.
Yes, you can use tools like Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time. You can check for vulnerabilities without requiring access to the code or installation.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
