Critical Malicious Code Vulnerability in @wizloft/harness-cli-adapter Package

@wizloft/harness-cli-adapter Updated 23 Sep 2026

Summary

23/09/2026
CRITICAL
No i
Critical
Not published

MAL-2026-16424: Malicious code in @wizloft/harness-cli-adapter (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The @wizloft/harness-cli-adapter is an npm package designed to facilitate integration with the Harness platform, providing developers with tools to streamline their CI/CD processes. However, this package has been identified to contain malicious code that compromises the security of any system where it is installed, making it a significant risk for users relying on its functionality.

Vulnerability Detail

The vulnerability stems from the presence of embedded malicious code within the @wizloft/harness-cli-adapter package. This code can fully compromise any computer that has the package installed, allowing unauthorized access to sensitive information, including secrets and keys. The malicious nature of the code means that even after removal of the package, there is no guarantee that all traces of the malicious software will be eliminated, potentially leaving systems vulnerable to further attacks.

How To Fix

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

npm uninstall @wizloft/harness-cli-adapter

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, ensure that you do not run any applications that depend on the @wizloft/harness-cli-adapter package until it has been completely removed and all sensitive information has been secured. Regularly monitor your systems for any unusual activity that may indicate a compromise.

Conclusion

The discovery of malicious code within the @wizloft/harness-cli-adapter package poses a serious threat to users. Immediate action is required to remove the package and secure any sensitive information. Utilizing tools like Vulert can help monitor for such vulnerabilities in the future.

See every vulnerability recorded for @wizloft/harness-cli-adapter →

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FAQ

Immediately uninstall the package using the command npm uninstall @wizloft/harness-cli-adapter and rotate any sensitive information stored on the affected machine.

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Currently, there is no patched version available for this package, making it essential to remove it immediately.

Failure to remove the package can lead to unauthorized access to sensitive data, potentially resulting in data breaches and further exploitation of your systems.

While not all packages from the same publisher may be compromised, it is advisable to conduct thorough reviews and audits of any packages before installation, especially following a known vulnerability.

How To Fix

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

npm uninstall @wizloft/harness-cli-adapter

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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