Critical Malicious Code Vulnerability in @asyncapi/java-spring-template Package

Summary

24/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-190716: Malicious code in @asyncapi/java-spring-template (npm). Affects @asyncapi/java-spring-template versions 1.6.1 – 1.6.2. No fix is published. How to fix ↓

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Background

The @asyncapi/java-spring-template package is a Java Spring template designed for building applications that utilize the AsyncAPI specification. It provides developers with tools and templates to streamline the development process. However, this package has been found to contain malicious code, posing significant security risks to any system that has it installed.

Vulnerability Detail

The vulnerability stems from the presence of embedded malicious code within the @asyncapi/java-spring-template package. This code can compromise any computer running the package, allowing unauthorized access to sensitive information such as secrets and keys. The malicious nature of the code means that even after removal of the package, there is no guarantee that all traces of the malicious software will be eliminated, potentially leaving the system vulnerable to further attacks.

How To Fix

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

npm uninstall @asyncapi/java-spring-template

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

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Workaround

As a workaround, it is recommended to avoid using the @asyncapi/java-spring-template package until a verified safe version is released. Monitor your application for any signs of compromise and consider using alternative packages that provide similar functionality without the associated risks.

Conclusion

The discovery of malicious code within the @asyncapi/java-spring-template package poses a serious threat to users. Immediate action is required to mitigate risks, including the removal of the package and rotation of sensitive information. Users are encouraged to monitor their systems and consider alternative solutions until a safe version is available.

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FAQ

Immediately remove the package and rotate all secrets and keys stored on the affected machine.

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

Currently, there is no specific patch available, but it is advised to update to the latest version of the package if released.

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

No, removing the package does not guarantee that all malicious software has been eliminated. A thorough security audit is recommended.

How To Fix

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

npm uninstall @asyncapi/java-spring-template

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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