Critical Malicious Code Vulnerability in deltanote Package

deltanote Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-18270: Malicious code in deltanote (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The deltanote package is an npm library designed for note-taking and organization, providing users with features to create, manage, and share notes efficiently. However, it has been identified to contain malicious code that compromises the integrity and security of applications utilizing this package. This vulnerability poses a significant risk to developers and users who rely on deltanote for their note management needs.

Vulnerability Detail

The vulnerability in the deltanote package stems from the inclusion of malicious code that can execute unauthorized actions within the user's environment. This code can lead to data breaches, unauthorized access to sensitive information, and potential system compromise. The issue was introduced in version 0 and affects all subsequent versions, making it critical 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 deltanote

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

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Workaround

As a temporary measure, you can avoid using the deltanote package until a secure version is released. Consider using alternative note-taking libraries that do not have known vulnerabilities.

Conclusion

The deltanote package has been found to contain malicious code, posing significant risks to users and developers. Immediate action is required to remove the package and seek alternatives. Utilizing tools like Vulert can help monitor for such vulnerabilities in the future.

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FAQ

The deltanote package is an npm library designed for note-taking and organization, allowing users to create and manage notes effectively.

The malicious code can execute unauthorized actions, potentially leading to data breaches and system compromises.

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.

As of now, there is no patched version available. It is recommended to remove the package and look for alternatives.

Remove the deltanote package immediately and replace it with a secure alternative to mitigate any risks.

How To Fix

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

npm uninstall deltanote

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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