Critical Malicious Code Vulnerability in @asyncapi/server-api Package

@asyncapi/server-api Updated 24 Nov 2025

Summary

24/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-190801: Malicious code in @asyncapi/server-api (npm). Affects @asyncapi/server-api versions 0.16.24 – 0.16.25. No fix is published. How to fix ↓

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Devnack Mobile apps built by Devnack Design, build and launch iOS and Android apps with a senior product team. From idea to store release Start a project

Background

The @asyncapi/server-api package is a Node.js library that facilitates the development of server-side applications using AsyncAPI specifications. It is designed to streamline the creation of APIs by providing tools for generating server code and documentation. However, this package has been identified as containing malicious code, posing significant risks to systems that utilize it.

Vulnerability Detail

The vulnerability originates from the presence of embedded malicious code within the @asyncapi/server-api package. This code can compromise any computer that has the package installed or running, potentially allowing unauthorized access to sensitive information, including secrets and keys. The malicious nature of the code has been confirmed by security researchers, and it is classified under CWE-506, indicating that the product contains code that appears to be malicious in nature.

How To Fix

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

npm uninstall @asyncapi/server-api

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 →

Workaround

There are no effective workarounds for this vulnerability other than removing the package entirely. It is recommended to monitor your system for any signs of compromise and take necessary actions to secure your environment.

Conclusion

The @asyncapi/server-api package has been found to contain malicious code that poses serious security risks. Immediate action is required to uninstall the package and secure any sensitive information. Continuous monitoring and using tools like Vulert can help in identifying and mitigating such vulnerabilities in the future.

See every vulnerability recorded for @asyncapi/server-api →

Share this vulnerability

FAQ

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

You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without requiring any signup.

Failing to address this vulnerability can lead to unauthorized access to sensitive data, system compromise, and potential exploitation by malicious actors.

No, there is currently no patched version available. The only solution is to remove the package entirely.

After removing the package, ensure that all secrets and keys are rotated and monitor your system for any unusual activity.

How To Fix

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

npm uninstall @asyncapi/server-api

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 →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback