Malicious Code Detected in async-sed-small-xml-upsilon Package
Summary
MAL-2025-14992: Malicious code in async-sed-small-xml-upsilon (npm). Affected versions are not published. No fix is published. How to fix ↓
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.
No signup required · Results in about 60 seconds
Background
The async-sed-small-xml-upsilon package is an npm module designed for XML manipulation and asynchronous operations. It is intended to simplify the process of handling XML data in JavaScript applications. However, this package has been identified to contain malicious code, which poses a significant risk to users who integrate it into their projects.
Vulnerability Detail
The vulnerability in the async-sed-small-xml-upsilon package arises from the inclusion of malicious code that can compromise the security of applications utilizing this package. This malicious code can lead to unauthorized access, data breaches, or other harmful actions within the affected systems. The issue was introduced in version 0 and affects all subsequent versions, 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 async-sed-small-xml-upsilon
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 using alternative packages that provide similar functionality without the associated risks. Always ensure to review the security status of any package before integrating it into your application.
Conclusion
The async-sed-small-xml-upsilon package has been identified as containing malicious code, posing serious security risks to applications that utilize it. Users are strongly advised to uninstall the package and seek alternatives to ensure the safety of their projects.
See every vulnerability recorded for async-sed-small-xml-upsilon →
FAQ
The async-sed-small-xml-upsilon package is used for XML manipulation and asynchronous operations in JavaScript applications.
You can check if your application is affected by using Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to use the Vulert playground without any signup.
If you have used the async-sed-small-xml-upsilon package, it is crucial to uninstall it immediately and consider using alternative packages.
Currently, there is no patched version available for the async-sed-small-xml-upsilon package. Users are advised to uninstall the package.
Using a package with malicious code can lead to unauthorized access, data breaches, and potential damage to your application and its users.