Malicious Code Injection in yuni-lapis49-pore: A Threat to npm Packages
Summary
MAL-2025-98556: Malicious code in yuni-lapis49-pore (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
yuni-lapis49-pore is an npm package that has been identified as part of a malicious campaign targeting the npm ecosystem. This package is associated with the tea.xyz token reward initiative, which aims to inflate developer reputation scores through the automatic generation and publication of derivative packages. The malicious nature of this package lies in its ability to manipulate package metadata and flood the npm registry with unwanted variants.
Vulnerability Detail
The vulnerability in yuni-lapis49-pore stems from its malicious payload that modifies the package.json file by removing private flags and altering version numbers. It generates random package names, often themed around Indonesian culture, and continuously republishes these variants to pollute the npm registry. This not only compromises the integrity of the npm ecosystem but also poses risks to developers who may unknowingly use these tainted packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall yuni-lapis49-poreIf 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 yuni-lapis49-pore package and monitor your project for any dependencies that may have been affected by this malicious code. You can also use tools like Vulert to monitor your package-lock.json for vulnerabilities without needing to access the code directly.
Conclusion
The yuni-lapis49-pore package presents a significant threat to the npm ecosystem due to its malicious behavior. Developers are advised to remove this package and monitor their dependencies closely. Utilizing tools like Vulert can help in maintaining the security of your projects.
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FAQ
yuni-lapis49-pore is an npm package involved in a malicious campaign that generates and publishes derivative packages to inflate developer reputation scores.
The vulnerability can lead to the pollution of the npm registry and may compromise the integrity of your project if you inadvertently use affected packages.
You should uninstall the package immediately and review your project's dependencies for any potential vulnerabilities.
Yes, you can use Vulert to monitor your package-lock.json for open-source vulnerabilities in real-time without needing to access the code.
You can use the Vulert playground to check if your application is affected by this vulnerability without signing up.
