Malicious Code Injection in available_koi_dumbs Package
Summary
MAL-2025-99676: Malicious code in available_koi_dumbs (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The available_koi_dumbs package is part of the npm ecosystem, often used in JavaScript projects for various functionalities. However, it has been identified as part of a malicious campaign linked to the tea.xyz token reward initiative. This package is designed to manipulate the npm registry by generating and publishing derivative packages with randomized names, thereby inflating developer reputation scores for token rewards.
Vulnerability Detail
The vulnerability in the available_koi_dumbs package stems from its malicious code that modifies the package.json file. This code removes private flags, alters version numbers, and creates random package names, which leads to the continuous republishing of these variants. The origin of this issue is tied to the tea.xyz token reward campaign, which exploits npm's publishing mechanism to pollute the registry and potentially compromise other projects relying on these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall available_koi_dumbsIf 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 available_koi_dumbs package and replace it with a trusted alternative. Additionally, regularly audit your dependencies using tools like npm audit to identify and mitigate vulnerabilities.
Conclusion
The available_koi_dumbs package poses a significant risk due to its malicious code that alters package metadata and floods the npm registry. It is crucial to remove this package and monitor your dependencies for vulnerabilities to maintain the integrity of your projects.
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FAQ
The available_koi_dumbs package is an npm package that has been identified as malicious, designed to manipulate the npm registry for token rewards.
This vulnerability can lead to the pollution of the npm registry, potentially affecting other projects that rely on the available_koi_dumbs package or its derivatives.
You should remove the available_koi_dumbs package from your project and monitor for any updates or patches that may address the vulnerability.
You can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
