Malicious Code Detected in 511fola Package - Security Alert

511fola Updated 03 Jan 2026

Summary

02/01/2026
CRITICAL
No i
Critical
Not published

MAL-2026-9: Malicious code in 511fola (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The 511fola package is a Node.js library available through the npm ecosystem. It is designed to provide specific functionalities for developers, but it has been flagged for containing malicious code. This vulnerability poses a significant risk to applications relying on this package, as it can lead to unauthorized access or data breaches.

Vulnerability Detail

The vulnerability originates from the 511fola package, which has been identified to contain malicious code. This code can potentially compromise the integrity of applications that utilize this package, leading to severe security implications such as data theft, unauthorized access, or system manipulation. The malicious nature of the code was confirmed through an analysis by Amazon Inspector, which detected the issue based on the package's SHA256 hash.

How To Fix

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

npm uninstall 511fola

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 →

Workaround

As a temporary workaround, you can avoid using the 511fola package altogether and look for alternative packages that provide similar functionality without the associated risks.

Conclusion

The discovery of malicious code in the 511fola package highlights the importance of regularly monitoring and updating dependencies in software projects. By removing the affected package and considering alternatives, developers can safeguard their applications against potential security threats.

See every vulnerability recorded for 511fola →

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FAQ

511fola is a Node.js library available on npm, designed for specific functionalities in software development.

The malicious code can compromise application security, potentially leading to 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 your application without needing to sign up.

If immediate removal is not possible, consider using alternative packages that offer similar functionalities without the security risks.

The vulnerability was identified by Amazon Inspector, a security tool that analyzes packages for malicious content.

How To Fix

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

npm uninstall 511fola

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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