Critical Malicious Code Vulnerability in aileron-logger Package

aileron-logger Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-14176: Malicious code in aileron-logger (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The aileron-logger package is an npm library designed for logging purposes in JavaScript applications. It provides developers with a simple interface to log messages, errors, and other information during the execution of their applications. However, this package has been identified to contain malicious code, posing significant security risks to applications that utilize it.

Vulnerability Detail

The vulnerability arises from the presence of malicious code within the aileron-logger package. This code can potentially compromise the security of applications that depend on it, leading to unauthorized access, data breaches, or other harmful actions. The malicious code was introduced in version 0 and affects all subsequent versions. Developers using this package should be aware of the risks associated with its use and take immediate action to mitigate potential threats.

How To Fix

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

npm uninstall aileron-logger

If 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 aileron-logger package altogether and implement a custom logging solution or utilize other well-known logging libraries that do not have known vulnerabilities.

Conclusion

The aileron-logger package has been identified to contain malicious code, posing serious security risks to applications that utilize it. Developers are advised to remove this package and consider secure alternatives to protect their applications. Regular monitoring for vulnerabilities using tools like Vulert can help maintain application security.

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FAQ

Aileron-logger is an npm package used for logging messages and errors in JavaScript applications.

The specific nature of the malicious code has not been disclosed, but it poses significant security risks, including unauthorized access and data breaches.

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 any signup.

Remove the aileron-logger package from your project and replace it with a secure alternative. If a patched version is available, update it using npm.

Yes, there are several alternative logging libraries available in the npm ecosystem, such as Winston and Bunyan, which are widely used and trusted.

How To Fix

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

npm uninstall aileron-logger

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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