Critical Malicious Code Vulnerability in node-calculator-0d96 Package

node-calculator-0d96 Updated 10 Dec 2025

Summary

10/12/2025
CRITICAL
No i
Critical
Not published

MAL-2025-192400: Malicious code in node-calculator-0d96 (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The node-calculator-0d96 package is a JavaScript library available through npm, designed to perform basic arithmetic calculations. It is often utilized in web applications to provide users with a simple calculator interface. However, this package has been compromised, embedding malicious code that poses significant security risks to any system where it is installed.

Vulnerability Detail

The vulnerability stems from the presence of malicious code within the node-calculator-0d96 package. This code can grant unauthorized access to the system, potentially allowing attackers to steal sensitive information such as secrets and keys. The origin of this malicious code is linked to a known malware source, and any system running this package should be considered fully compromised. The implications of this vulnerability are severe, as it can lead to complete control of the affected computer by an external entity.

How To Fix

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

npm uninstall node-calculator-0d96

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, as the only safe course of action is to uninstall the compromised package. Ensure that you monitor your system for any signs of unauthorized access following the removal.

Conclusion

The node-calculator-0d96 package contains malicious code that poses a significant security threat. Immediate action is required to uninstall the package and secure any sensitive information. Regular monitoring of dependencies is essential to prevent future vulnerabilities.

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FAQ

Immediately uninstall the package using the command 'npm uninstall node-calculator-0d96' and rotate any sensitive information stored on the affected system.

You can use Vulert's playground at Vulert Scanner to check if your application is affected without needing to sign up.

Leaving the package installed can lead to unauthorized access to your system, allowing attackers to steal sensitive data and potentially take control of your computer.

Regularly monitor your dependencies for vulnerabilities using tools like Vulert, which can alert you in real-time about open-source vulnerabilities.

If you suspect that your system has been compromised, it is crucial to conduct a thorough security audit, change all passwords, and consider restoring from a backup.

How To Fix

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

npm uninstall node-calculator-0d96

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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