Malicious Code Detected in email-pattern Package - MAL-2025-19551
Summary
MAL-2025-19551: Malicious code in email-pattern (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 email-pattern package is an npm library designed to validate email formats using specific patterns. It is commonly used in web applications to ensure that user inputs conform to standard email formats. However, this package has been identified to contain malicious code, posing significant security risks to applications that rely on it.
Vulnerability Detail
The vulnerability in the email-pattern package originates from the inclusion of malicious code that can compromise the security of applications using this library. 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.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall email-patternIf 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, you can avoid using the email-pattern package and implement your own email validation logic using regular expressions or other libraries that are known to be secure. Here is a simple example of a regex-based email validation function:
function validateEmail(email) {
const re = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/;
return re.test(String(email).toLowerCase());
}
Conclusion
The email-pattern package has been identified to contain malicious code that poses a significant threat to applications using it. It is crucial for developers to remove this package and consider secure alternatives to protect their applications from potential security breaches.
See every vulnerability recorded for email-pattern →
FAQ
The email-pattern package is an npm library used for validating email formats in web applications.
The vulnerability involves the presence of malicious code that can compromise application security.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Check your application using the Vulert playground at Vulert Scanner.
It is advised to remove the email-pattern package and replace it with a secure alternative or implement your own email validation logic.
Currently, there is no patched version available. It is best to remove the package until a secure alternative is found.
