Malicious Code Injection in unknown_dolphin_0xrequest Package

unknown_dolphin_0xrequest Updated 18 Nov 2025

Summary

11/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-110149: Malicious code in unknown_dolphin_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 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 unknown_dolphin_0xrequest package is part of a series of npm packages that have been associated with the tea.xyz token reward campaign. These packages are designed to automate the generation and publication of derivative packages, often with randomized names, to inflate developer reputation scores for token rewards. This behavior poses significant risks to the integrity of the npm registry and the security of applications relying on these packages.

Vulnerability Detail

The vulnerability in the unknown_dolphin_0xrequest package stems from its malicious payload, which modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior leads to the continuous republishing of variants, effectively polluting the npm registry. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which exploits npm's publishing mechanisms to manipulate package visibility and reputation.

How To Fix

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

npm uninstall unknown_dolphin_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 workaround, you can prevent the installation of this malicious package by using npm's package-lock.json to monitor dependencies. Ensure that your project does not include unknown_dolphin_0xrequest in its dependencies. You can also use tools like Vulert to monitor your package-lock.json for vulnerabilities without needing to install any additional software.

Conclusion

The unknown_dolphin_0xrequest package poses a significant security risk due to its malicious behavior of modifying package files and republishing variants. It is essential to remove this package from your project and monitor your dependencies for any vulnerabilities. Utilizing tools like Vulert can help maintain the security of your applications.

See every vulnerability recorded for unknown_dolphin_0xrequest →

Share this vulnerability

FAQ

It is an npm package associated with a token reward campaign that automates the generation of derivative packages.

The vulnerability can lead to the pollution of the npm registry and may compromise the integrity of your application by introducing malicious code.

You should uninstall the package immediately and check for any other affected packages in your project.

Yes, you can use Vulert to monitor your package-lock.json for open-source vulnerabilities in real-time without requiring installation.

Regularly check for updates, use tools like Vulert, and avoid using unverified packages from the npm registry.

How To Fix

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

npm uninstall unknown_dolphin_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