Malicious Code Detected in intl-tel-input-utils: A Critical Security Alert

intl-tel-input-utils Updated 29 Dec 2025

Summary

29/12/2025
CRITICAL
No i
Critical
Not published

MAL-2025-192959: Malicious code in intl-tel-input-utils (npm). Affects intl-tel-input-utils versions 99.99.99. No fix is published. How to fix ↓

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Background

The package 'intl-tel-input-utils' is a utility library designed for international telephone input formatting in web applications. It is widely used in forms requiring telephone number input, providing features such as country selection and formatting. However, a recent analysis has identified a severe security vulnerability in version 99.99.99, which poses significant risks to users and applications utilizing this package.

Vulnerability Detail

The vulnerability in 'intl-tel-input-utils' arises from its communication with a domain linked to malicious activities and the execution of commands associated with harmful behavior. This could lead to unauthorized access, data breaches, or the execution of arbitrary code within affected applications, compromising user data and application integrity.

How To Fix

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

npm uninstall intl-tel-input-utils

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

If immediate updating is not feasible, consider removing the package temporarily or replacing it with an alternative library that provides similar functionality without the associated risks. Additionally, monitor your application for any unusual behavior that may indicate exploitation of this vulnerability.

Conclusion

The discovery of malicious code in the 'intl-tel-input-utils' package highlights the importance of maintaining vigilance in open-source software usage. Users are advised to update their packages promptly and utilize tools like Vulert for ongoing monitoring of vulnerabilities.

See every vulnerability recorded for intl-tel-input-utils →

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FAQ

The vulnerability can lead to unauthorized access and execution of malicious commands, potentially compromising user data and application security.

You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.

Consider removing the package or replacing it with a safer alternative until you can update to a secure version.

Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities using just your package-lock.json file.

Detailed information can be found in the OpenSSF Package Analysis report and on the GitHub repository for malicious packages.

How To Fix

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

npm uninstall intl-tel-input-utils

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 →

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