Malicious Code Detected in node-calculator-ecec Package

node-calculator-ecec Updated 19 Nov 2025

Summary

17/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-190544: Malicious code in node-calculator-ecec (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The node-calculator-ecec package is an npm library designed for performing basic arithmetic calculations. It is utilized by developers to integrate simple calculator functionalities into their applications. However, this package has been found to contain malicious code, posing significant security risks to any application that incorporates it.

Vulnerability Detail

The vulnerability stems from the presence of malicious code within the node-calculator-ecec package. This code can potentially lead to unauthorized access, data breaches, or other harmful actions within the applications that utilize this package. The malicious code was identified by Amazon Inspector, indicating that the package has been compromised and is not safe for use.

How To Fix

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

npm uninstall node-calculator-ecec

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 node-calculator-ecec package altogether and implement your own basic calculator functions in JavaScript. Here’s a simple example:

function add(a, b) {
  return a + b;
}

function subtract(a, b) {
  return a - b;
}

function multiply(a, b) {
  return a * b;
}

function divide(a, b) {
  if (b === 0) {
    throw new Error('Cannot divide by zero');
  }
  return a / b;
}

Conclusion

The discovery of malicious code in the node-calculator-ecec package highlights the importance of regularly monitoring and auditing open-source dependencies. Developers should take immediate action to remove this package and consider alternatives to safeguard their applications.

See every vulnerability recorded for node-calculator-ecec →

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FAQ

It is an npm library used for basic arithmetic calculations in applications.

The specific nature of the malicious code has not been disclosed, but it poses significant security risks.

You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without any signup.

Remove the package from your project and replace it with a secure alternative or implement your own calculator functions.

Currently, there is no patched version available. It is recommended to remove the package until a secure version is released.

How To Fix

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

npm uninstall node-calculator-ecec

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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