Malicious Code Injection in bimasatria Package: npm Vulnerability Overview
Summary
MAL-2025-170985: Malicious code in bimasatria (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The bimasatria package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the generation and publication of derivative packages, which are often used to inflate developer reputation scores in exchange for token rewards. However, its functionality has been compromised, leading to significant security concerns.
Vulnerability Detail
The vulnerability in the bimasatria package originates from its malicious payload, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior is intended to create numerous derivative packages that pollute the npm registry, potentially leading to reputation damage for developers and security risks for users who inadvertently install these compromised packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall bimasatriaIf 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 remove the bimasatria package from your project by executing the command: 'npm uninstall bimasatria'. This will prevent any malicious code from executing until a proper fix is applied.
Conclusion
The bimasatria package poses a significant security risk due to its malicious code that alters package metadata and floods the npm registry with compromised packages. It is crucial for developers to take immediate action by updating or removing the package and to implement monitoring solutions like Vulert to safeguard their projects.
See every vulnerability recorded for bimasatria →
FAQ
The bimasatria package is an npm package associated with the tea.xyz token reward campaign, designed to generate and publish derivative packages.
The vulnerability can lead to the modification of your package.json file, removal of private flags, and the generation of numerous malicious packages that can compromise your project's integrity.
If you have installed bimasatria, you should uninstall it immediately and check for any other affected packages in your project.
Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities in your software using just package-lock.json. You can also check if your application is affected by this vulnerability using the Vulert playground.
Regularly update your dependencies, monitor for vulnerabilities using tools like Vulert, and review your package.json for any suspicious changes.
