Malicious Code Injection in outside_ladybug_z3n Package
Summary
MAL-2025-95811: Malicious code in outside_ladybug_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The outside_ladybug_z3n package is part of the npm ecosystem, which is widely used for JavaScript development. This package has been identified as part of a malicious campaign that aims to manipulate the npm registry by generating and publishing numerous derivative packages. The primary function of this package appears to be linked to the tea.xyz token reward campaign, which incentivizes developers to inflate their reputation scores through dubious means.
Vulnerability Detail
The vulnerability originates from the package's design, which includes scripts that automatically modify the package.json file. This modification removes private flags, alters version numbers, and generates random package names, leading to the pollution of the npm registry. The malicious payload can significantly impact developers by compromising the integrity of the npm ecosystem and potentially introducing security risks into applications that depend on these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall outside_ladybug_z3nIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the outside_ladybug_z3n package in your project. If it is already included, remove it by executing: npm uninstall outside_ladybug_z3n. This will help mitigate the risk until a proper fix is implemented.
Conclusion
The outside_ladybug_z3n package poses a significant risk due to its malicious code designed to manipulate the npm registry. Developers should take immediate action to remove this package and monitor their applications for any potential vulnerabilities. Utilizing tools like Vulert can help maintain the security of your software.
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FAQ
The outside_ladybug_z3n package is a JavaScript package in the npm ecosystem that has been linked to a malicious campaign aimed at manipulating developer reputation scores.
The vulnerability can lead to the introduction of malicious code into your application, potentially compromising its security and integrity.
You should uninstall the outside_ladybug_z3n package immediately and monitor your application for any unusual behavior.
Yes, you can use Vulert, which monitors your package-lock.json file for open-source vulnerabilities in real-time. You can also check your application using the Vulert playground without any signup.
Regularly update your packages, monitor for vulnerabilities using tools like Vulert, and review the security advisories for the packages you use.
