Critical Malicious Code Vulnerability in const-enum Package

const-enum Updated 07 Jan 2026

Summary

07/01/2026
CRITICAL
No i
Critical
Not published

MAL-2026-103: Malicious code in const-enum (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The const-enum package is a JavaScript library available on npm that is used for defining constant enumerations in a type-safe manner. It is designed to enhance code readability and maintainability by allowing developers to define a set of named constants. However, this package has been identified as containing malicious code, posing significant security risks to any system where it is installed.

Vulnerability Detail

The vulnerability in the const-enum package is classified as malicious code embedded within the software. Originating from a compromised source, this vulnerability allows an attacker to gain full control over any computer that has the package installed. The ramifications include potential data breaches, unauthorized access to sensitive information, and the risk of further malware installation. The technical aspect of this vulnerability is categorized under CWE-506, which indicates the presence of malicious code that can compromise the integrity and confidentiality of the system.

How To Fix

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

npm uninstall const-enum

If 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 best course of action is to completely remove the const-enum package and ensure that your system is secure.

Conclusion

The const-enum package has been identified as containing malicious code that poses significant security risks. Immediate action is required to uninstall the package and secure any sensitive information. Utilizing tools like Vulert can help in monitoring for such vulnerabilities in the future.

See every vulnerability recorded for const-enum →

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FAQ

You should uninstall the const-enum package immediately and rotate any sensitive information stored on the affected system.

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.

Leaving the const-enum package installed can lead to unauthorized access to your system, data breaches, and the potential installation of additional malicious software.

No, there is currently no patched version available for the const-enum package. It is recommended to remove it entirely.

Vulert uses the package-lock.json file to monitor and alert for open-source vulnerabilities in your software, providing real-time insights without requiring code access.

How To Fix

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

npm uninstall const-enum

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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