Malicious Code Detected in transform-es2015-modules-amd Package

transform-es2015-modules-amd Updated 06 Feb 2026

Summary

03/02/2026
CRITICAL
No i
Critical
Not published

MAL-2026-664: Malicious code in transform-es2015-modules-amd (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The transform-es2015-modules-amd package is an npm module designed to facilitate the transformation of ES2015 modules into AMD format. It is commonly used in JavaScript projects to ensure compatibility with older module systems. However, this package has been found to contain malicious code, posing a significant security risk to systems that utilize it.

Vulnerability Detail

The vulnerability stems from the presence of embedded malicious code within the transform-es2015-modules-amd package. This code can compromise any computer that has the package installed, leading to potential data breaches and unauthorized access to sensitive information. The malicious code may allow attackers to gain full control over the affected systems, making it imperative for users to take immediate action to mitigate the risks associated with this vulnerability.

How To Fix

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

npm uninstall transform-es2015-modules-amd

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

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Workaround

As a workaround, users should consider isolating their development environment and avoiding the use of the transform-es2015-modules-amd package until a secure version is confirmed. Additionally, rotate any secrets or keys stored on the affected systems to prevent unauthorized access.

Conclusion

The discovery of malicious code in the transform-es2015-modules-amd package poses a serious threat to users and their systems. Immediate action is required to remove the package and secure any sensitive information. Utilizing tools like Vulert can help monitor for vulnerabilities and ensure the safety of your software environment.

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FAQ

It is an npm module used to transform ES2015 modules into AMD format for compatibility with older JavaScript environments.

If you have the transform-es2015-modules-amd package installed, your system may be compromised. Use tools like Vulert to monitor and alert for vulnerabilities.

Immediately rotate all secrets and keys stored on the affected system and consider removing the package to mitigate risks.

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

Failure to address this vulnerability may result in unauthorized access to your system, data breaches, and the potential loss of sensitive information.

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How To Fix

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

npm uninstall transform-es2015-modules-amd

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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