Malicious Code Injection in terrible_lynx_dumbs Package
Summary
MAL-2025-109556: Malicious code in terrible_lynx_dumbs (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The terrible_lynx_dumbs package is part of the npm ecosystem, often used in JavaScript projects for various functionalities. However, it has been identified as part of a malicious campaign that aims to exploit npm's publishing system. This package is associated with the tea.xyz token reward scheme, which has led to the proliferation of numerous derivative packages that can compromise the integrity of the npm registry.
Vulnerability Detail
The vulnerability in the terrible_lynx_dumbs package stems from its malicious code that modifies the package.json file to remove private flags and alters version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants to inflate developer reputation scores for token rewards. This behavior not only pollutes the npm registry but also poses a risk of dependency confusion and potential security breaches in projects relying on these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall terrible_lynx_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 prevent the installation of the terrible_lynx_dumbs package by adding it to your project's .npmrc file with the following line: package-lock=false. This will help avoid any accidental installations of this malicious package until it is fully removed from the npm registry.
Conclusion
The terrible_lynx_dumbs package poses a significant risk due to its malicious code that alters package metadata and floods the npm registry with derivative packages. It is crucial for developers to remove this package from their projects and monitor for similar vulnerabilities to maintain the security of their applications.
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FAQ
The terrible_lynx_dumbs package is an npm package that has been identified as malicious, designed to exploit the npm publishing system for token rewards.
This vulnerability can lead to dependency confusion, allowing malicious code to be executed in your project, which can compromise security and integrity.
If you have installed the terrible_lynx_dumbs package, you should immediately uninstall it using the command npm uninstall terrible_lynx_dumbs.
You can use tools like Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time without requiring code access or installation.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
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