Critical Malicious Code Vulnerability in btc-transaction-helper Package

btc-transaction-helper Updated 02 Dec 2025

Summary

02/12/2025
CRITICAL
No i
Critical
Not published

MAL-2025-191556: Malicious code in btc-transaction-helper (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 btc-transaction-helper package is a tool designed for facilitating Bitcoin transactions within Node.js applications. It provides developers with functions to create, sign, and broadcast Bitcoin transactions easily. However, this package has been compromised, leading to severe security risks for any system utilizing it. The malicious code embedded within this package can lead to unauthorized access and control over affected systems.

Vulnerability Detail

The vulnerability stems from the presence of malicious code within the btc-transaction-helper package. This code can compromise any computer that has the package installed or running, potentially allowing an attacker to gain full control over the system. The implications of this vulnerability are severe, as it can lead to the exposure of sensitive information, including secrets and keys stored on the compromised machine. Users are advised to treat any system with this package as fully compromised.

How To Fix

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

npm uninstall btc-transaction-helper

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 and securing the system. Users should ensure that they have rotated all sensitive information before removing the package.

Conclusion

The btc-transaction-helper package has been identified as containing malicious code that poses significant security risks. Users must act swiftly to remove the package and secure their systems to prevent unauthorized access and data breaches. Utilizing tools like Vulert can help monitor for such vulnerabilities in the future.

See every vulnerability recorded for btc-transaction-helper →

Share this vulnerability

FAQ

Immediately remove the btc-transaction-helper package and rotate all 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 needing to sign up.

Leaving this package installed can lead to unauthorized access to your system, potential data breaches, and loss of sensitive information.

The only effective mitigation is to remove the package and secure your system. There are no safe workarounds.

While removing the package is essential, it does not guarantee complete security. You should also rotate all secrets and keys and monitor your system for any signs of compromise.

How To Fix

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

npm uninstall btc-transaction-helper

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