Malicious Code Vulnerability in nf-cl-logger-test Package

nf-cl-logger-test Updated 19 Mar 2026

Summary

18/03/2026
CRITICAL
No i
Critical
Not published

MAL-2026-1798: Malicious code in nf-cl-logger-test (npm). Affects nf-cl-logger-test versions 99.99.99. No fix is published. How to fix ↓

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Background

The nf-cl-logger-test package is a Node.js library designed for logging functionalities in applications. It is commonly used in various npm projects to facilitate logging operations. However, this package has been identified to contain malicious code, which poses a significant security risk to applications that utilize it.

Vulnerability Detail

The vulnerability originates from the inclusion of malicious code within the nf-cl-logger-test package. This code can potentially compromise the integrity of applications that depend on this package, leading to unauthorized access, data breaches, or other malicious activities. The specific version affected is 99.99.99, which has been flagged for containing this harmful code.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall nf-cl-logger-test

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

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Workaround

As a workaround, consider replacing nf-cl-logger-test with an alternative logging library that does not have known vulnerabilities. Popular alternatives include 'winston' or 'bunyan'. You can install 'winston' using the following command: npm install winston.

Conclusion

The nf-cl-logger-test package has been identified as containing malicious code, posing a significant risk to applications that use it. Users are advised to uninstall the package and consider alternative logging libraries to ensure the security of their applications.

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FAQ

nf-cl-logger-test is a Node.js library used for logging functionalities in applications.

The malicious code can compromise application integrity, leading to unauthorized access and potential data breaches.

You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without requiring any signup.

No, there is currently no patched version available for the nf-cl-logger-test package.

It is recommended to uninstall the nf-cl-logger-test package and replace it with a secure alternative logging library.

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How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall nf-cl-logger-test

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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