Critical Malicious Code Vulnerability in aligntype Package
Summary
MAL-2026-435: Malicious code in aligntype (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 aligntype package is a JavaScript library available on npm that is used for aligning text and other elements in web applications. It is designed to simplify the process of layout management in front-end development. However, this package has been identified to contain malicious code that compromises the security of any system it is installed on.
Vulnerability Detail
The vulnerability stems from the presence of embedded malicious code within the aligntype package. This code can grant unauthorized access to the system, allowing attackers to control the affected computer fully. The ramifications of this vulnerability are severe, as it can lead to data theft, unauthorized access to sensitive information, and potential further exploitation of the system. Users are advised to treat any system with this package installed as compromised and take immediate action.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall aligntypeIf 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
There are no effective workarounds for this vulnerability other than removing the package entirely. Ensure that your application does not rely on aligntype for any critical functionality before uninstalling.
Conclusion
The aligntype package contains malicious code that poses a significant security risk to any system it is installed on. Immediate removal of the package and rotation of sensitive information is essential to mitigate the threat. Regular monitoring of dependencies is recommended to avoid similar vulnerabilities in the future.
See every vulnerability recorded for aligntype →
FAQ
You should uninstall the aligntype package immediately and rotate any sensitive information stored on the affected system.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Failing to remove the aligntype package can lead to unauthorized access to your system, data breaches, and further exploitation by malicious actors.
Regularly monitor your dependencies using tools like Vulert, which can alert you to open-source vulnerabilities in real-time.
Yes, you can report vulnerabilities to the maintainers of the package or through platforms like GitHub to help protect other users.
