Critical Malicious Code Vulnerability in @revizahoshii/hoshino-store-postgres Package

Summary

12/10/2026
CRITICAL
No i
Critical
Not published

MAL-2026-17830: Malicious code in @revizahoshii/hoshino-store-postgres (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The @revizahoshii/hoshino-store-postgres package is an npm library designed for PostgreSQL database interactions within applications. It is utilized for storing and retrieving data efficiently. However, this package has been identified as containing malicious code, posing significant risks to any system where it is installed.

Vulnerability Detail

The vulnerability originates from the presence of embedded malicious code within the @revizahoshii/hoshino-store-postgres package. Any system running this package is considered fully compromised, with potential unauthorized access to sensitive data, secrets, and keys. The malicious code can lead to severe security breaches, including data theft and system control by external entities.

How To Fix

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

npm uninstall @revizahoshii/hoshino-store-postgres

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

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Workaround

There are no effective workarounds for this vulnerability. The only recommended action is to uninstall the compromised package and secure the system.

Conclusion

The @revizahoshii/hoshino-store-postgres package contains malicious code that compromises any system it is installed on. Immediate uninstallation and security measures are necessary to mitigate risks associated with this vulnerability.

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FAQ

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

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.

Failing to address this vulnerability can lead to unauthorized access to sensitive data, potential data breaches, and loss of control over your system.

No, there is currently no patched version available for this package. The only solution is to uninstall it.

After uninstalling the package, ensure to rotate all secrets and keys stored on the affected system from a secure computer.

How To Fix

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

npm uninstall @revizahoshii/hoshino-store-postgres

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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