Critical Malicious Code Vulnerability in function-color Package
Summary
MAL-2026-17647: Malicious code in function-color (npm). Affects function-color versions 1.0.0 – 1.7.3. No fix is published. How to fix ↓
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Background
The function-color package is an npm library designed to provide color manipulation functionalities for JavaScript applications. It allows developers to easily apply colors to text and backgrounds in their applications. However, this package has been identified as containing malicious code, which poses significant security risks to any system where it is installed.
Vulnerability Detail
The vulnerability originates from the presence of embedded malicious code within the function-color package. This code can compromise the entire system where the package is installed, allowing unauthorized access to sensitive information such as secrets and keys. The malicious nature of the code means that even after removal of the package, there may still be lingering effects on the system, as full control could have been granted to an external entity.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall function-colorIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
There are no effective workarounds for this vulnerability. The only recommended action is to remove the function-color package entirely from your system.
Conclusion
The function-color package has been identified as containing malicious code that poses a significant risk to any system where it is installed. Immediate removal of the package and rotation of sensitive information is critical to mitigate potential damage. Users are encouraged to utilize tools like Vulert to monitor for vulnerabilities in their applications.
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FAQ
You should immediately remove the function-color package and rotate any secrets or keys stored on your system.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check if your application is affected without needing to sign up.
Failing to address this vulnerability can lead to unauthorized access to sensitive information and potential full compromise of your system.
There are no effective mitigations; the only safe course of action is to remove the package entirely.
While removing the package is essential, there is no guarantee that all malicious software resulting from its installation will be removed. It is advisable to take additional security measures.
