Critical Malicious Code Vulnerability in jsonify-parser Package

jsonify-parser Updated 19 Mar 2026

Summary

19/03/2026
CRITICAL
No i
Critical
Not published

MAL-2026-1925: Malicious code in jsonify-parser (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The jsonify-parser package is an npm library designed for parsing JSON data. It is commonly used in JavaScript applications to facilitate data handling and manipulation. However, this package has been identified as containing malicious code that compromises the security of any system where it is installed, making it a significant threat to developers and users alike.

Vulnerability Detail

The vulnerability stems from the presence of embedded malicious code within the jsonify-parser package. This code can fully compromise any computer that has the package installed, allowing unauthorized access to sensitive information such as secrets and keys. The origin of this malicious code is linked to a known malware source, and its ramifications include potential data breaches and loss of control over the affected systems. Users are advised to treat any system with this package as compromised.

How To Fix

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

npm uninstall jsonify-parser

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

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Workaround

Currently, there are no workarounds available to mitigate the risks associated with the jsonify-parser package. The only recommended action is to uninstall the package and secure your system.

Conclusion

The jsonify-parser package contains malicious code that poses a severe security risk to any system where it is installed. Immediate action is required to uninstall the package and secure sensitive information. Users should remain vigilant and consider using tools like Vulert to monitor for vulnerabilities in their projects.

See every vulnerability recorded for jsonify-parser →

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FAQ

jsonify-parser is an npm package used for parsing JSON data in JavaScript applications.

The malicious code can compromise your system, allowing unauthorized access to sensitive information and potentially leading to data breaches.

You should immediately uninstall the jsonify-parser package and rotate any sensitive information stored on the affected system.

No, there is currently no patched version available for the jsonify-parser package.

You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json file. You can also check your application for vulnerabilities using the Vulert playground without any signup.

How To Fix

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

npm uninstall jsonify-parser

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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