Malicious Code Detected in ber3 Package - Security Alert

ber3 Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-15601: Malicious code in ber3 (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The ber3 package is a Node.js library used for encoding and decoding BER (Basic Encoding Rules) data. It is commonly utilized in applications that require efficient data serialization. However, recent findings have revealed that this package contains malicious code, posing significant security risks to applications that depend on it.

Vulnerability Detail

The vulnerability in the ber3 package stems from the inclusion of malicious code that can compromise the integrity and security of applications using this library. This malicious code can lead to unauthorized access, data breaches, and potential exploitation of the affected systems. The issue was identified in version 0 and has been flagged as a critical security concern.

How To Fix

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

npm uninstall ber3

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 ber3 package from your project and replacing it with a safer alternative that provides similar functionality.

Conclusion

The discovery of malicious code in the ber3 package highlights the importance of maintaining vigilance in software dependencies. Users of this package should take immediate action to update or replace it to safeguard their applications from potential threats.

See every vulnerability recorded for ber3 →

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FAQ

The ber3 package is used for encoding and decoding BER (Basic Encoding Rules) data in Node.js applications.

You can check if your application is affected by using Vulert, which monitors and alerts for open-source vulnerabilities. Visit Vulert Scanner to use the Vulert playground without any signup.

The malicious code can lead to unauthorized access, data breaches, and exploitation of the affected systems, compromising the security of your application.

Yes, updating to a patched version of the ber3 package will resolve the vulnerability. Use the command 'npm update ber3' to update.

If immediate updating is not possible, consider removing the ber3 package and replacing it with a safer alternative.

How To Fix

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

npm uninstall ber3

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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