Malicious Code Detected in node-calculator-splo: Security Alert

node-calculator-splo Updated 02 Oct 2025

Summary

03/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-6740: Malicious code in node-calculator-splo (npm). Affects node-calculator-splo 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 Penetration testing for web, API and mobile 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-splo package is an npm library designed for performing basic arithmetic calculations. It is intended for developers looking to integrate simple calculator functionalities into their applications. However, this package has been identified as having a vulnerability that allows it to communicate with a domain associated with malicious activities, potentially compromising user data and application integrity.

Vulnerability Detail

The vulnerability in node-calculator-splo originates from version 2.2.0 and later, where the package establishes communication with a malicious domain. This could lead to unauthorized data access, data theft, or other malicious actions that could affect both the application and its users. The technical aspect of this vulnerability lies in the package's ability to execute code that connects to external, potentially harmful servers.

How To Fix

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

npm uninstall node-calculator-splo

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 node-calculator-splo package from your project until a secure version is released. Use the following command to uninstall it: npm uninstall node-calculator-splo. Alternatively, consider using a different package that provides similar functionality without the associated risks.

Conclusion

The node-calculator-splo package has been identified with a serious vulnerability that allows communication with a malicious domain. It is crucial for developers using this package to take immediate action by updating or removing it to protect their applications and users. Utilizing tools like Vulert can help in monitoring and managing such vulnerabilities effectively.

See every vulnerability recorded for node-calculator-splo →

Share this vulnerability

FAQ

node-calculator-splo is an npm package designed for basic arithmetic calculations in JavaScript applications.

The vulnerability allows the package to communicate with a malicious domain, posing risks of data theft and unauthorized access.

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.

Check the npm repository for node-calculator-splo for any patched versions. Updating to the latest version is recommended.

As a temporary measure, consider uninstalling the package or using an alternative that does not have known vulnerabilities.

How To Fix

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

npm uninstall node-calculator-splo

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