Malicious Code Injection in ajmalmunir Package: A Threat to npm Users

ajmalmunir Updated 26 Nov 2025

Summary

12/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-170752: Malicious code in ajmalmunir (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 Devnack Your last release was probably never penetration tested Manual testing by engineers who build software, not an auditor's checklist. Trusted by teams at Swift and Google Talk to Devnack

Background

The ajmalmunir package is part of the npm ecosystem, which is widely used for managing JavaScript packages. This package, like many others, is intended to facilitate the development and deployment of applications by providing reusable code. However, it has been identified as part of a malicious campaign that exploits npm's package management system, leading to significant security risks for developers and users alike.

Vulnerability Detail

The vulnerability in the ajmalmunir package stems from its association with a malicious campaign that floods the npm registry with derivative packages. These packages contain scripts designed to automatically modify package.json files, removing private flags, changing version numbers, and generating random package names. This behavior not only inflates developer reputation scores but also pollutes the npm registry, making it difficult for users to find legitimate packages. The malicious payload can lead to unauthorized access and manipulation of applications that rely on this package.

How To Fix

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

npm uninstall ajmalmunir

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 workaround, you can avoid using the ajmalmunir package and any other packages that are part of the malicious campaign. Regularly audit your package dependencies using tools like npm audit to identify and address vulnerabilities in your project.

Conclusion

The ajmalmunir package poses a significant security risk due to its malicious code designed to exploit the npm registry. Developers should take immediate action to remove this package and monitor their dependencies for vulnerabilities. Utilizing tools like Vulert can provide additional security by alerting users to potential threats in real-time.

See every vulnerability recorded for ajmalmunir →

Share this vulnerability

FAQ

The ajmalmunir package is an npm package that has been identified as part of a malicious campaign to exploit the npm registry.

The vulnerability can lead to unauthorized modifications of your application's dependencies, potentially compromising its security and functionality.

You should immediately uninstall the ajmalmunir package using the command npm uninstall ajmalmunir and review your project's dependencies for any other malicious packages.

You can use tools like Vulert, which monitors your package-lock.json file to alert you in real-time about open-source vulnerabilities in your software.

Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.

How To Fix

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

npm uninstall ajmalmunir

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