Critical Malicious Code Vulnerability in sk-lib-enc Package

sk-lib-enc Updated 30 Sep 2026

Summary

29/09/2026
CRITICAL
No i
Critical
Not published

MAL-2026-17284: Malicious code in sk-lib-enc (npm). Affects sk-lib-enc versions 1.0.2. No fix is published. How to fix ↓

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Background

The sk-lib-enc package is an npm library designed for encryption and decryption functionalities in JavaScript applications. It is commonly used by developers to secure sensitive data. However, this package has been identified to contain malicious code, posing a significant risk to any application that utilizes it.

Vulnerability Detail

The vulnerability originates from the presence of embedded malicious code within the sk-lib-enc package. This malicious code can compromise the integrity of the system, allowing unauthorized access to sensitive information such as secrets and keys. Any system running this package is considered fully compromised, and the removal of the package may not eliminate all traces of the malicious software.

How To Fix

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

npm uninstall sk-lib-enc

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

As a workaround, it is advisable to avoid using the sk-lib-enc package until a secure version is released. Consider using alternative libraries for encryption and decryption functionalities that are known to be safe.

Conclusion

The sk-lib-enc package has been identified as containing malicious code, posing a significant risk to users. Immediate action is required to remove the package and secure any sensitive information. Regular monitoring of dependencies is essential to maintain application security.

See every vulnerability recorded for sk-lib-enc →

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FAQ

You should remove the sk-lib-enc package immediately and rotate any secrets or keys stored on the affected system.

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

Currently, there is no patched version available. It is recommended to remove the package until a secure version is released.

Failure to address this vulnerability can lead to unauthorized access to sensitive information and complete system compromise.

While many npm packages are safe, it is crucial to regularly monitor and audit your dependencies for vulnerabilities using tools like Vulert.

How To Fix

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

npm uninstall sk-lib-enc

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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