Malicious Code Injection in insufficient_catfish_0xrequest Package

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-104266: Malicious code in insufficient_catfish_0xrequest (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 insufficient_catfish_0xrequest package is part of the npm ecosystem, which is widely used for JavaScript package management. This package, like many others, is intended to facilitate the development of applications by providing reusable code. However, it has been identified as part of a malicious campaign that exploits npm's publishing mechanisms to inflate developer reputation scores through the automatic generation and publication of derivative packages.

Vulnerability Detail

The vulnerability in the insufficient_catfish_0xrequest package stems from its association with a malicious campaign that modifies package.json files to remove private flags, alters version numbers, and generates random package names. This behavior is designed to pollute the npm registry by continuously republishing variants, which can lead to security risks for developers who unknowingly incorporate these packages into their projects. The malicious payload can compromise the integrity of applications relying on this package, potentially exposing them to further attacks.

How To Fix

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

npm uninstall insufficient_catfish_0xrequest

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, avoid using the insufficient_catfish_0xrequest package and consider using alternative packages that provide similar functionality without the associated risks. Additionally, regularly audit your npm packages for vulnerabilities using tools like npm audit.

Conclusion

The insufficient_catfish_0xrequest package poses a significant security risk due to its malicious behavior of modifying package files and republishing variants. It is crucial for developers to remove this package from their projects and to regularly audit their dependencies for vulnerabilities. Utilizing tools like Vulert can aid in maintaining the security of your applications.

See every vulnerability recorded for insufficient_catfish_0xrequest →

Share this vulnerability

FAQ

It is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores.

The vulnerability can lead to the inclusion of malicious code in your application, compromising its security and integrity.

You should uninstall the insufficient_catfish_0xrequest package immediately and check for any other potentially affected packages.

Yes, you can use tools like npm audit or Vulert, which monitors and alerts for open-source vulnerabilities in real-time.

You can use the Vulert playground at Vulert Scanner to check your application for vulnerabilities without needing to sign up.

How To Fix

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

npm uninstall insufficient_catfish_0xrequest

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