Malicious Code Detected in cppamf Package - Security Alert

cppamf Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-17649: Malicious code in cppamf (npm). Affected versions are not published. 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 MarkAI Find prospects already talking about the problem you solve AI watches the communities your customers use to find qualified prospects, then alerts you when a conversation is worth joining. See MarkAI

Background

The cppamf package is an npm library designed for handling AMF (Action Message Format) serialization and deserialization. It is commonly used in applications that require communication with Adobe Flash and Flex applications. However, this package has been identified to contain malicious code, posing significant security risks to users and their applications.

Vulnerability Detail

The vulnerability in the cppamf package originates from the inclusion of malicious code that can compromise the security of applications utilizing this library. This malicious code could potentially lead to unauthorized access, data breaches, or other harmful actions within the affected systems. Users of cppamf should be aware that any version from the initial release contains this vulnerability, making it imperative to take immediate action.

How To Fix

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

npm uninstall cppamf

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

As a temporary measure, users can remove the cppamf package from their project until a secure version is released. This can be done using the command: 'npm uninstall cppamf'. Consider using alternative libraries that provide similar functionality without the associated risks.

Conclusion

The cppamf package has been identified to contain malicious code, posing serious security risks. Users are advised to update or remove the package until a secure version is released. Utilizing tools like Vulert can help monitor for vulnerabilities in your applications.

See every vulnerability recorded for cppamf →

Share this vulnerability

FAQ

The cppamf package is used for AMF serialization and deserialization, primarily in applications that interact with Adobe Flash and Flex.

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

If an immediate update is not possible, consider removing the cppamf package from your project and using alternative libraries until a secure version is released.

As of now, there is no patched version available. Users should monitor the cppamf package repository for updates.

Using the cppamf package with the malicious code can lead to unauthorized access, data breaches, and other security threats to your application.

How To Fix

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

npm uninstall cppamf

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