Critical Malicious Code Vulnerability in callback-hook Package
Summary
MAL-2025-192404: Malicious code in callback-hook (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The callback-hook package is an npm library used for managing callback functions in JavaScript applications. It allows developers to easily handle asynchronous operations by providing a straightforward way to register and invoke callbacks. However, this package has been compromised, leading to significant security concerns for any application that relies on it.
Vulnerability Detail
The vulnerability stems from the presence of malicious code embedded within the callback-hook 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 malicious nature of this code has been confirmed by security researchers, and it poses a severe risk to the integrity and confidentiality of affected systems.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall callback-hookIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a workaround, if your application relies on the functionality provided by callback-hook, consider using alternative libraries that offer similar capabilities without the associated risks. Always ensure to review the security history of any package before integrating it into your project.
Conclusion
The callback-hook package has been identified as containing malicious code that poses a significant security threat. 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.
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FAQ
Immediately uninstall the package using 'npm uninstall callback-hook' and rotate any secrets or keys stored on the affected machine.
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No, there is currently no patched version available for the callback-hook package. The only solution is to remove it entirely.
Failing to address this vulnerability can lead to unauthorized access to sensitive information, potential data breaches, and complete compromise of the affected system.
It is highly discouraged to use callback-hook due to its malicious nature. Instead, consider finding alternative libraries that provide similar functionality.
