CRITICAL npm Malware

Malicious code in solidity-cat (npm)

MAL-2026-18694

Published · Modified

Dependency scanning

Check whether solidity-cat is in your codebase

Corgea flags malicious and compromised dependencies with reachability analysis, so you fix the packages that actually run in your application instead of working through the whole lockfile.

Description

solidity-cat ships index.js, which is byte-identical to the hardhat-hold payload: an obfuscator.io-style loader built on execSync and axios that fetches and runs a second stage. It is a new name for the hardhat-hold (MAL-2026-14246) campaign; the file hashes below match that record's evidence. The package presents itself as an ordinary utility, so the code runs on import or install without the user knowing.

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