Malicious Code Injection in tomi-semur99-breki Package - npm Vulnerability
Summary
MAL-2025-75737: Malicious code in tomi-semur99-breki (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The tomi-semur99-breki package is part of the npm ecosystem, which is widely used for managing JavaScript packages. This package appears to be associated with a token reward campaign that has led to the proliferation of malicious packages on npm. Its primary function is to facilitate the distribution of JavaScript code, but it has been compromised to include harmful scripts that manipulate package metadata.
Vulnerability Detail
The vulnerability in the tomi-semur99-breki package stems from its inclusion in a campaign that floods the npm registry with malicious packages. These packages contain scripts designed to automatically modify package.json files, removing private flags, altering version numbers, and generating random package names. This behavior not only compromises the integrity of the affected packages but also pollutes the npm registry, potentially affecting other developers and users relying on these packages.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall tomi-semur99-brekiIf 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-semur99-breki package and look for alternative packages that provide similar functionality without the associated risks. Additionally, consider using tools like Vulert to monitor your dependencies for vulnerabilities.
Conclusion
The tomi-semur99-breki package has been identified as a malicious entity within the npm ecosystem, capable of compromising package integrity and polluting the registry. It is crucial for developers to remove this package and monitor their dependencies for vulnerabilities to maintain the security of their applications.
See every vulnerability recorded for tomi-semur99-breki →
FAQ
The tomi-semur99-breki package is an npm package that has been identified as malicious, designed to manipulate package metadata and flood the npm registry.
This vulnerability can compromise your application's integrity by introducing malicious code and polluting the npm registry, which may lead to further security issues.
If you have installed the tomi-semur99-breki package, you should uninstall it immediately and check for any alternative packages that do not pose a security risk.
You can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time about open-source vulnerabilities in your software.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
