Malicious Code Detected in final-sigma-warn-emulate-big Package

final-sigma-warn-emulate-big Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-20567: Malicious code in final-sigma-warn-emulate-big (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The final-sigma-warn-emulate-big package is an npm library designed to provide specific functionalities within JavaScript applications. However, it has been identified as containing malicious code, which poses a significant risk to applications that utilize this package. Users of this package should be aware of its potential vulnerabilities and the implications of using compromised libraries.

Vulnerability Detail

The vulnerability in the final-sigma-warn-emulate-big package stems from the inclusion of malicious code that can compromise the security of applications using it. This malicious code can lead to unauthorized access, data breaches, or other harmful actions within the affected systems. The issue was introduced in version 0 and affects all subsequent versions, making it critical for users to take immediate action to mitigate risks.

How To Fix

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

npm uninstall final-sigma-warn-emulate-big

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 remove the final-sigma-warn-emulate-big package from your project by executing: npm uninstall final-sigma-warn-emulate-big. This will prevent any malicious code from executing until a secure version is released.

Conclusion

The final-sigma-warn-emulate-big package has been identified as containing malicious code, posing a serious risk to applications that utilize it. Users are urged to take immediate action by updating or uninstalling the package to safeguard their systems. Utilizing tools like Vulert can help monitor for such vulnerabilities effectively.

See every vulnerability recorded for final-sigma-warn-emulate-big →

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FAQ

It is an npm library used in JavaScript applications, but it has been found to contain malicious code.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Check your application against the vulnerability using the Vulert playground.

Immediately update or uninstall the package to prevent potential security risks.

Currently, there is no patched version available, so users should uninstall the package until a secure version is released.

Vulert uses your package-lock.json file to monitor and alert you in real-time for any open-source vulnerabilities without requiring code access or installation.

How To Fix

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

npm uninstall final-sigma-warn-emulate-big

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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