Malicious Code Exploit in precise_loon_dumbs Package
Summary
MAL-2025-107191: Malicious code in precise_loon_dumbs (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The precise_loon_dumbs package is part of the npm ecosystem, often used in JavaScript projects. It has been identified as part of a larger campaign that aims to exploit npm's publishing system. This package is designed to manipulate package metadata and inflate developer reputation scores through automated scripts.
Vulnerability Detail
The vulnerability stems from the package's malicious code, which 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 publish numerous derivative packages, thereby polluting the npm registry and potentially compromising the integrity of other projects that depend on it. The malicious payload can lead to unauthorized access and misuse of the npm ecosystem.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall precise_loon_dumbsIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
There are no direct workarounds for this vulnerability other than removing the affected package. Ensure that your project does not rely on precise_loon_dumbs or any of its derivatives.
Conclusion
The precise_loon_dumbs package poses a significant risk to projects using npm due to its malicious code that alters package metadata and publishes unauthorized derivatives. Immediate action is required to remove this package and safeguard your project from potential exploitation.
See every vulnerability recorded for precise_loon_dumbs →
FAQ
It is an npm package that has been identified as part of a malicious campaign to exploit the npm registry.
The malicious code can modify your package.json file, potentially leading to unauthorized package publishing and reputation inflation.
You should uninstall the precise_loon_dumbs package immediately and check your project for any unauthorized changes.
Yes, you can use Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time without needing to install any software.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
