Malicious Code Detected in ellentang Package - Security Alert

ellentang Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-19535: Malicious code in ellentang (npm). Affected versions are not published. 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 ellentang package is a Node.js library commonly used in various applications for its utility in data manipulation and processing. It is designed to provide developers with a set of tools to enhance their applications. However, recent findings have revealed that this package contains malicious code, posing a significant security risk to users and their applications.

Vulnerability Detail

The vulnerability in the ellentang package originates from the inclusion of malicious code that can compromise the integrity and security of applications utilizing this library. This code may allow unauthorized access to sensitive data, facilitate data exfiltration, or enable remote code execution, leading to severe ramifications for affected systems. The malicious nature of this code was identified by security researchers from Amazon Inspector, raising concerns about the safety of applications relying on this package.

How To Fix

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

npm uninstall ellentang

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 ellentang package from your project until a secure version is released. You can do this by executing the following command: npm uninstall ellentang. This will help mitigate the risk while you await a fix.

Conclusion

The discovery of malicious code in the ellentang package poses a significant security threat to applications that utilize it. Users are advised to update or remove the package to safeguard their systems. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.

See every vulnerability recorded for ellentang →

Share this vulnerability

FAQ

The malicious code can compromise application security, potentially allowing unauthorized access to sensitive data or enabling remote code execution.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. By utilizing the Vulert playground, you can check if your application is affected without any signup.

As of now, it is crucial to check the package repository for any updates or patches that address the vulnerability in the ellentang package.

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

The vulnerability was discovered by security researchers from Amazon Inspector, who identified the presence of malicious code in the package.

How To Fix

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

npm uninstall ellentang

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