Malicious Code Exploit in soviet_squid_z3n: A Threat to npm Ecosystem
Summary
MAL-2025-96691: Malicious code in soviet_squid_z3n (npm). Affected versions are not published. No fix is published. How to fix ↓
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.
No signup required · Results in about 60 seconds
Background
The package 'soviet_squid_z3n' is part of a series of malicious npm packages associated with the tea.xyz token reward campaign. These packages are designed to manipulate the npm registry by creating and publishing numerous derivative packages with randomized names, thereby inflating developer reputation scores for token rewards. This behavior poses a significant risk to the integrity of the npm ecosystem.
Vulnerability Detail
The vulnerability stems from the presence of malicious code within the 'soviet_squid_z3n' package. This code modifies the package.json file to remove private flags, alters version numbers, and generates random package names, leading to the continuous republishing of variants. This not only pollutes the npm registry but also compromises the security and reliability of applications relying on these packages. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which exploits npm's publishing mechanisms.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall soviet_squid_z3nIf 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, you can avoid using the 'soviet_squid_z3n' package and look for alternative packages that provide similar functionality without the associated risks. Additionally, consider using tools like Vulert to monitor your project for vulnerabilities. You can check if your application is affected by this vulnerability using the Vulert playground at https://vulert.com/scanner.
Conclusion
The 'soviet_squid_z3n' package poses a significant threat to the npm ecosystem due to its malicious code that manipulates package metadata and floods the registry. It is essential to remove this package from your projects and monitor for vulnerabilities using tools like Vulert to ensure the security of your applications.
See every vulnerability recorded for soviet_squid_z3n →
FAQ
The 'soviet_squid_z3n' package is a malicious npm package that is part of a token reward campaign, designed to manipulate the npm registry.
This vulnerability can lead to the pollution of the npm registry, potentially compromising the integrity and security of applications that depend on affected packages.
You should uninstall the 'soviet_squid_z3n' package immediately and check for any dependencies that may rely on it.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software by analyzing your package-lock.json file.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
