Malicious Code Detected in libxmlhere Package - Security Alert

libxmlhere Updated 11 Dec 2025

Summary

11/12/2025
CRITICAL
No i
Critical
Not published

MAL-2025-192455: Malicious code in libxmlhere (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 MarkAI Find prospects already talking about the problem you solve AI watches the communities your customers use to find qualified prospects, then alerts you when a conversation is worth joining. See MarkAI

Background

libxmlhere is an npm package designed for XML manipulation and processing. It offers various functionalities that allow developers to work with XML data efficiently. However, this package has been flagged for containing malicious code, which poses significant security risks to applications that utilize it.

Vulnerability Detail

The vulnerability in the libxmlhere package arises from the presence of malicious code, which can lead to unauthorized access, data breaches, or other harmful actions within an application. This issue was identified by Amazon Inspector, which reported that the package contains code that could compromise the integrity and security of systems relying on it. The malicious code was introduced from version 0 and affects all subsequent versions.

How To Fix

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

npm uninstall libxmlhere

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 measure, you can avoid using the libxmlhere package until a secure version is released. If your application relies heavily on its functionality, consider using alternative libraries for XML processing.

Conclusion

The discovery of malicious code in the libxmlhere package highlights the importance of vigilance in managing open-source dependencies. Developers are urged to remove this package and seek alternatives to safeguard their applications from potential threats.

See every vulnerability recorded for libxmlhere →

Share this vulnerability

FAQ

libxmlhere is an npm package used for XML manipulation and processing in JavaScript applications.

The malicious code can potentially allow unauthorized access and compromise the security of applications using the package.

You can use Vulert, which monitors and alerts for open-source vulnerabilities. Visit Vulert Scanner to check your application without needing to sign up.

It is advised to uninstall the libxmlhere package and look for secure alternatives for XML processing.

Regularly check for updates on your packages and consider using tools like Vulert to monitor vulnerabilities in real-time.

How To Fix

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

npm uninstall libxmlhere

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