registry / tailwind-form-kit / 0.6.4

tailwind-form-kit@0.6.4

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

Importing the package main entry executes concealed code before exporting the Tailwind form plugin. That code fetches a staged payload, executes it, launches a detached process, and removes its own loader.

Static reason

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

Trigger

Importing or requiring tailwind-form-kit, including through the supplied Tailwind configuration.

Impact

Arbitrary code supplied by the remote payload can run in the consumer environment and persist outside the importing process.

Mechanism

Obfuscated remote payload retrieval followed by eval and detached process execution.

Attack narrative

The package declares src/index.js as its main entry. On import, concealed code runs immediately, derives remote addresses, retrieves a payload, evaluates it, and launches another Node process detached from the caller. It then rewrites src/index.js to strip the loader, concealing the behavior after the first execution. This is unrelated to a Tailwind form plugin and provides a direct staged remote-code-execution path.

AI rationale

The import-time loader combines remote payload execution, detached process creation, and self-removal. These behaviors are concrete malicious execution, even though npm lifecycle hooks are absent.

Evidence

package.jsonsrc/index.js

OSV advisory

OpenSSF/OSV

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@0.6.4

AI Security Review

OSV advisory

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Source & flagged code