Critical Malicious Code Vulnerability in eleftron Package

eleftron Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-19479: Malicious code in eleftron (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The eleftron package is an npm library designed for enhancing electronic device interactions and functionalities. It provides developers with tools to streamline communication between software and hardware components. However, recent findings have revealed that this package contains malicious code, posing significant risks to applications that utilize it.

Vulnerability Detail

The vulnerability in the eleftron package stems from the presence of malicious code that was intentionally introduced. This code can compromise the integrity of applications using the package, potentially leading to unauthorized access, data breaches, or other malicious activities. The vulnerability affects all versions starting from 0, making it critical for users to take immediate action.

How To Fix

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

npm uninstall eleftron

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 eleftron package from your project until a secure version is released. You can do this by running: 'npm uninstall eleftron'. This will help mitigate the risk of exploitation until a fix is available.

Conclusion

The eleftron package has been found to contain malicious code, posing a serious threat to applications that utilize it. Users are urged to update or remove the package to protect their applications from potential exploitation. Regular monitoring and vulnerability assessments are essential for maintaining software security.

See every vulnerability recorded for eleftron →

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FAQ

The eleftron package is an npm library that facilitates communication between software and electronic devices.

The malicious code was identified by security researchers from Amazon Inspector, who reported it as a significant vulnerability.

The risks include unauthorized access to sensitive data, potential data breaches, and exploitation of the application’s functionalities.

You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without needing to sign up.

If an immediate update is not possible, consider removing the package from your project as a temporary measure to reduce risk.

How To Fix

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

npm uninstall eleftron

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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