Malicious Code Injection in lesser_trout_dumbs Package: A Threat to npm Ecosystem
Summary
MAL-2025-105093: Malicious code in lesser_trout_dumbs (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The lesser_trout_dumbs package is part of a series of npm packages that emerged during the tea.xyz token reward campaign. These packages are designed to inflate developer reputation scores by automatically generating and publishing derivative packages with randomized names. The functionality of this package is compromised due to the presence of malicious scripts that manipulate package metadata.
Vulnerability Detail
The vulnerability in the lesser_trout_dumbs package stems from 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 pollute the npm registry and can lead to severe ramifications, including the proliferation of untrusted packages and potential security risks for developers who unknowingly use these packages. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which incentivizes the creation of such malicious packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall lesser_trout_dumbsIf 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 lesser_trout_dumbs package and any other packages associated with the tea.xyz token reward campaign. Regularly audit your npm packages to identify and remove any potentially malicious packages.
Conclusion
The lesser_trout_dumbs package poses a significant threat to the npm ecosystem due to its malicious code that modifies package metadata. Developers should take immediate action to remove this package and monitor their dependencies for similar vulnerabilities. Utilizing tools like Vulert can help in maintaining the security of your projects.
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FAQ
The lesser_trout_dumbs package is an npm package that is part of a malicious campaign aimed at inflating developer reputation scores through the automatic generation of derivative packages.
The malicious code modifies your package.json file, potentially exposing your project to security risks and polluting the npm registry with untrusted packages.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. By uploading your package-lock.json file, you can check for vulnerabilities in real-time.
You should immediately remove the lesser_trout_dumbs package from your project and audit your dependencies for any other malicious packages.
Regularly audit your npm packages, use tools like Vulert for real-time monitoring, and stay informed about known vulnerabilities in the open-source ecosystem.
