Malicious Code Injection in rina-bubursumsum91-kyuki Package
Summary
MAL-2025-90142: Malicious code in rina-bubursumsum91-kyuki (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The rina-bubursumsum91-kyuki package is part of the npm ecosystem and is associated with the tea.xyz token reward campaign. This package is designed to facilitate the automatic generation and publication of derivative packages, which can inflate developer reputation scores for token rewards. However, it has been identified as containing malicious code that compromises its integrity and the security of applications using it.
Vulnerability Detail
The vulnerability in the rina-bubursumsum91-kyuki package stems from its malicious payload, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior leads to the continuous republishing of variants, polluting the npm registry and potentially exposing users to further security risks. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which has been known to flood npm with such malicious packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall rina-bubursumsum91-kyukiIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, you can temporarily remove the package from your dependencies until a secure version is released. Use the following command to uninstall the package: npm uninstall rina-bubursumsum91-kyuki.
Conclusion
The rina-bubursumsum91-kyuki package has been identified as containing malicious code that poses a significant risk to applications using it. It is crucial to remove this package and monitor for any updates or patches to ensure the security of your software.
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FAQ
It is an npm package associated with the tea.xyz token reward campaign, designed to generate and publish derivative packages.
The malicious code can compromise your application's integrity by modifying package configurations and potentially exposing it to further security risks.
You should uninstall the package immediately and monitor for any updates or patches that may be released.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just package-lock.json. You can check your application for vulnerabilities without requiring access to the code or installation.
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