Malicious Code Detected in rules-deployer Package - npm Vulnerability

rules-deployer Updated 01 Jan 2026

Summary

01/01/2026
CRITICAL
No i
Critical
Not published

MAL-2026-3: Malicious code in rules-deployer (npm). Affects rules-deployer versions 0.0.0. No fix is published. How to fix ↓

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Background

The 'rules-deployer' package is an npm module designed for deploying rules in various applications. It is intended to facilitate the management and deployment of configuration rules. However, this package has been flagged for malicious activity, specifically due to its communication with a domain associated with harmful actions, raising significant security concerns for users relying on it.

Vulnerability Detail

The vulnerability in the 'rules-deployer' package arises from its version 0.0.0, which has been identified as malicious by the OpenSSF Package Analysis project. The package's behavior includes communication with a domain linked to malicious activities, potentially compromising the security of applications that utilize it. This could lead to unauthorized access, data breaches, or other harmful consequences for users and their systems.

How To Fix

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

npm uninstall rules-deployer

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 temporary workaround, you can avoid using the 'rules-deployer' package altogether and look for alternative solutions that do not pose security risks. Ensure to review the security of any new packages before integrating them into your project.

Conclusion

The 'rules-deployer' package has been identified as malicious, with significant security implications for users. It is crucial to uninstall this package and seek alternative solutions to ensure the safety and integrity of your applications.

See every vulnerability recorded for rules-deployer →

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FAQ

The 'rules-deployer' package is an npm module used for deploying configuration rules in applications.

'rules-deployer' is considered malicious because it communicates with a domain associated with harmful activities, posing security risks.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without any signup.

If you are using 'rules-deployer', uninstall it immediately using 'npm uninstall rules-deployer' and look for safer alternatives.

No, there are no patches available for 'rules-deployer' version 0.0.0, and it is recommended to remove the package entirely.

How To Fix

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

npm uninstall rules-deployer

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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