Malicious Code Injection in tomi-ubi79-kyuki Package - npm Vulnerability
Summary
MAL-2025-91213: Malicious code in tomi-ubi79-kyuki (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The tomi-ubi79-kyuki package is part of the npm ecosystem, which is widely used for JavaScript package management. This package has been identified as part of a malicious campaign that aims to exploit the npm registry by flooding it with derivative packages. These packages are designed to inflate developer reputation scores through automated publishing scripts, which can lead to significant pollution of the npm registry and potential security risks for developers using these packages.
Vulnerability Detail
The vulnerability stems from the presence of malicious code within the tomi-ubi79-kyuki package. This code modifies the package.json file to remove private flags, alters version numbers, and generates random package names, which are often themed around Indonesian culture. The malicious payload continuously republishes these variants, leading to an overwhelming number of entries in the npm registry. This not only compromises the integrity of the registry but also poses risks to developers who may inadvertently use these compromised packages in their applications.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall tomi-ubi79-kyukiIf 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 tomi-ubi79-kyuki package and look for alternative packages that provide similar functionality without the associated risks. Additionally, you can implement stricter dependency management practices to minimize the risk of introducing malicious packages into your project.
Conclusion
The tomi-ubi79-kyuki package poses a significant security risk due to its malicious code designed to exploit the npm registry. It is crucial for developers to remove this package from their projects and to implement robust monitoring practices to safeguard against similar vulnerabilities in the future.
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FAQ
The tomi-ubi79-kyuki package is an npm package that has been identified as part of a malicious campaign to exploit the npm registry.
Using the tomi-ubi79-kyuki package can lead to security risks, including the potential for your project to be compromised by malicious code.
You should uninstall the tomi-ubi79-kyuki package immediately and check for any other potentially compromised packages in your project.
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.
