Malicious Code Injection in flaviosantos Package: A Threat to npm Users
Summary
MAL-2025-171229: Malicious code in flaviosantos (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The flaviosantos package is part of the npm ecosystem, which is widely used for managing JavaScript packages. This package, like many others, is intended to provide specific functionalities to developers. However, it has been identified as part of a malicious campaign that exploits npm's package management system, leading to significant security concerns for users who may unknowingly install it.
Vulnerability Detail
The vulnerability in the flaviosantos package originates from its association with the tea.xyz token reward campaign. This package contains malicious scripts that automatically modify the package.json file by removing private flags and changing version numbers. It generates random package names and continuously republishes variants to clutter the npm registry. The ramifications include potential exposure of sensitive data, unauthorized access, and the degradation of the npm ecosystem's integrity.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall flaviosantosIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary measure, you can avoid using the flaviosantos package until a secure version is released. Additionally, consider using alternative packages that provide similar functionality without the associated risks.
Conclusion
The flaviosantos package poses a significant security risk due to its malicious code designed to manipulate the npm registry. Users are advised to uninstall this package immediately and monitor their applications for any potential vulnerabilities. Utilizing tools like Vulert can help maintain the security of your software.
See every vulnerability recorded for flaviosantos →
FAQ
The flaviosantos package is a JavaScript package available on npm, intended for use in various applications. However, it has been compromised and is now associated with malicious activities.
You can use Vulert, which monitors open-source vulnerabilities in your software using just the package-lock.json file. Visit the Vulert playground at Vulert Scanner to check if your application is affected without needing to sign up.
If you have installed the flaviosantos package, you should uninstall it immediately using the command 'npm uninstall flaviosantos' and check for any other dependencies that may have been affected.
Yes, using compromised packages can lead to data breaches, unauthorized access to your application, and can compromise the integrity of your entire project.
To prevent similar vulnerabilities, regularly audit your dependencies, keep your packages updated, and use tools like Vulert to monitor for vulnerabilities in real-time.
