Malicious Code Detected in node-calculator-fahw: A Security Alert

node-calculator-fahw Updated 02 Oct 2025

Summary

03/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-6739: Malicious code in node-calculator-fahw (npm). Affects node-calculator-fahw versions >= 2.2.0. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Devnack Your last release was probably never penetration tested Manual testing by engineers who build software, not an auditor's checklist. Trusted by teams at Swift and Google Talk to Devnack

Background

The node-calculator-fahw package is an npm library designed for performing various mathematical calculations. It is widely used in applications that require arithmetic functionalities. However, this package has been identified as having a vulnerability that allows it to communicate with a domain associated with malicious activities, posing a risk to users and their data.

Vulnerability Detail

The vulnerability originates from version 2.2.0 of the node-calculator-fahw package, which has been found to establish connections with a domain linked to malicious actions. This could lead to data breaches, unauthorized access, or other security incidents, as the package may transmit sensitive information to the malicious domain. Users of this package should be aware of the potential risks associated with its use.

How To Fix

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

npm uninstall node-calculator-fahw

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, consider removing the node-calculator-fahw package from your project until a secure version is confirmed. You can uninstall it using the following command: npm uninstall node-calculator-fahw.

Conclusion

The node-calculator-fahw package has a critical vulnerability that allows it to connect to a malicious domain. Users should take immediate action to update or remove the package to protect their applications from potential threats. Utilizing tools like Vulert can help monitor for such vulnerabilities in real-time.

See every vulnerability recorded for node-calculator-fahw →

Share this vulnerability

FAQ

node-calculator-fahw is an npm package used for performing mathematical calculations in JavaScript applications.

The package has been found to communicate with a domain that is linked to malicious activities, which could compromise user data.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without any signup.

Yes, users are advised to update to the latest version of the node-calculator-fahw package to mitigate the vulnerability.

As a temporary measure, consider uninstalling the package until a secure version is available.

How To Fix

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

npm uninstall node-calculator-fahw

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 →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback