Critical Malicious Code Vulnerability in cyrpto Package

cyrpto Updated 19 Jan 2026

Summary

19/01/2026
CRITICAL
No i
Critical
Not published

MAL-2026-331: Malicious code in cyrpto (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The cyrpto package is a Node.js library designed for cryptographic operations, providing functionalities such as hashing, encryption, and decryption. However, it has been identified as containing malicious code that compromises the security of any system where it is installed. This vulnerability poses a significant risk to users, as it can lead to unauthorized access to sensitive information and system control.

Vulnerability Detail

The vulnerability originates from the cyrpto package, which has been flagged for containing embedded malicious code. This malicious code can fully compromise any computer that has the package installed, allowing attackers to gain control and access to all secrets and keys stored on the system. The ramifications are severe, as the integrity and confidentiality of data can be jeopardized, leading to potential data breaches and unauthorized actions.

How To Fix

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

npm uninstall cyrpto

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 cyrpto package and secure the system.

Conclusion

The cyrpto package has been identified as a significant security risk due to the presence of malicious code. Immediate action is required to uninstall the package and secure any sensitive information. Users are encouraged to utilize tools like Vulert to monitor for vulnerabilities in their applications.

See every vulnerability recorded for cyrpto →

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FAQ

You should uninstall the cyrpto package immediately and rotate any secrets or keys stored on your system.

You can use Vulert's playground at Vulert Scanner to check if your application is affected without requiring any signup.

Failing to address this vulnerability can lead to unauthorized access to sensitive information, data breaches, and potential control over your system by malicious actors.

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

After removing the package, ensure to rotate all secrets and keys stored on the system and monitor for any unusual activity.

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How To Fix

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

npm uninstall cyrpto

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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