Critical Malicious Code Vulnerability in isotopet4s-layout Package
Summary
MAL-2025-6842: Malicious code in isotopet4s-layout (npm). Affects isotopet4s-layout versions >= 99.99.1. 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 isotopet4s-layout package is an npm library designed for layout management in web applications. It provides developers with tools to create responsive and dynamic layouts. However, this package has been found to communicate with a domain associated with malicious activities, raising significant security concerns for users relying on it.
Vulnerability Detail
The vulnerability in the isotopet4s-layout package stems from its communication with a domain linked to malicious activities. This could potentially lead to data breaches, unauthorized access, or other harmful effects on the systems using this package. The issue was introduced in version 99.99.1, making it crucial for users to be aware of the risks associated with this version.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall isotopet4s-layoutIf 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, users can avoid using the isotopet4s-layout package until a secure version is released. Additionally, consider using alternative packages that provide similar functionality without the associated risks.
Conclusion
The isotopet4s-layout package has a critical vulnerability due to its communication with a malicious domain. Users are advised to update their packages or find alternatives to mitigate risks. Regular monitoring with tools like Vulert can help maintain security in open-source projects.
See every vulnerability recorded for isotopet4s-layout →
FAQ
It is an npm library for managing layouts in web applications.
The package communicates with a domain linked to malicious activities, posing security risks.
You can use Vulert's playground at Vulert Scanner to check for vulnerabilities without needing to sign up.
Update to the latest version of the package or consider using alternatives until a fix is available.
Vulert monitors and alerts for open-source vulnerabilities in your software using just the package-lock.json file.
