registry / tailwind-form-kit / 0.6.2

tailwind-form-kit@0.6.2

A plugin that provides a basic reset for form styles that makes form elements easy to override with utilities.

AI Security Review

scanned 27d ago · by lpm-firewall-ai

Loading the package executes a concealed remote payload loader. It decodes a network-delivered payload, evaluates it, launches it detached, and erases the loader from the installed entry file.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

Importing the package main entry, including through the Tailwind configuration plugin load.

Impact

Arbitrary code execution in the consumer environment and concealment by modifying the installed package.

Mechanism

Obfuscated remote payload retrieval, decoding, eval, detached process launch, and self-modification.

Attack narrative

A consumer imports the configured main entry. Its top-level call runs concealed logic that uses network and blockchain lookup code to obtain a payload, decodes a response header, evaluates the resulting JavaScript, and starts a detached Node process. The entry then rewrites src/index.js to remove the malicious loader while retaining the form-plugin implementation.

AI rationale

This is concrete import-time remote code execution with a detached child process and self-removal behavior. The absence of an npm lifecycle hook does not mitigate execution through the configured main entry.

Evidence

package.jsonsrc/index.js

OSV advisory

OpenSSF/OSV

Advisory

MAL-2026-16139

The package presents itself as a Tailwind CSS forms plugin but its main entry src/index.js is a heavily obfuscated module (obfuscator.io-style rotating string array with 303 entries, hex identifiers, control-flow dispatchers) that on require/import dynamically loads node:http, node:https, node:zlib, and node:child_process via createRequire and stashes them on the global object. On module load it issues POST requests carrying a custom x-payload-* header and a spoofed Chrome/Windows User-Agent to a hardcoded blockchain indexer (etherscan/blockscout-style) and to public Ethereum RPC providers (publicnode.com, drpc.org, 1rpc.io, eth-mainnet), reading process.env.ETH_RPC_URL to augment the RPC list, and references a hardcoded Ethereum sender address. None of this behavior is disclosed and none of it corresponds to a Tailwind CSS forms plugin; the repository field also impersonates tailwindlabs. The combination of heavy obfuscation, dynamic-require caching on global, spawn availability, and unsolicited outbound blockchain network I/O at library-load is a covert import-time channel unrelated to the advertised purpose. ## Source: ghsa-malware (2f393dd02d60e026717c58d23e86b376b0a47b73038607f8ddd9254442f0d1e6) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

tailwind-form-kit@0.6.2

AI Security Review

OSV advisory

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Source & flagged code