Vulnerabilities

Vulnerability · MAL-2026-16282

Malicious code in tailwindcss-form (npm)

Published Sep 18, 2026 · catalog updated Oct 15, 2026 · Malicious code in tailwindcss-form

Open the advisory

Exploitation likelihood is not on this record for MAL-2026-16282. A missing EPSS score is not a low risk. Compare Malicious code in tailwindcss-form with the linked advisory before you change production.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Malicious code in tailwindcss-form).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Advisory link
Affected products
npm tailwindcss-form

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (f5c6b39e2bde3263d10e2f20e707d06b981e746fda83ef7772233db33ae7a4f2) Package name mimics the legitimate tailwindcss-forms plugin (repo field points at tailwindlabs/tailwindcss-forms) but the main entry src/index.js is an obfuscator.io-packed bundle (303-entry rotated string array, control-flow flattening) whose top-level code has no relation to a Tailwind CSS plugin. On require() it loads node:http, node:https, node:zlib, and node:child_process, then issues requests to a set of hardcoded Ethereum endpoints (eth.blockscout.com, *.publicnode.com, *.drpc.org, 1rpc.io/eth) and an INDEXER_URL, carrying an etherscan-style txlist query against a hardcoded wallet address 0xa322E5f3... and custom x-payload-* headers. Response content is stashed into process globals (_t_u, _t_s, _H, _H2) that are then consumed by a child_process.spawn call, giving the operator of the indexer remote code execution on the installer's machine at import time. The combination of typosquatted name, obfuscator.io packing of the main entry, hardcoded remote endpoints acting as a command channel, and spawn of a fetched payload is a supply-chain trojan disguised as a Tailwind plugin. ## Source: ghsa-malware (a6360dfe9a149abb217abe22c0f48a3c37dffdc5b8ed3fb0e637a72cae6efbfc) 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • npm tailwindcss-form0.5.1

How to fix MAL-2026-16282

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for MAL-2026-16282. A missing EPSS score is not a low risk. Compare Malicious code in tailwindcss-form with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 0.5.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 18, 2026 · GitHub Advisory Database

    Detected

    --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (f5c6b39e2bde3263d10e2f20e707d06b981e746fda83ef7772233db33ae7a4f2) Package name mimics the legitimate tailwindcss-forms plugin (repo field points at tailwindlabs/tailwindcss-forms) but the main entry src/index.js is an obfuscator.io-packed bundle (303-entry rotated string array, control-flow flattening) whose t

  2. Oct 15, 2026 · GitHub Advisory Database

    Updated

    --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (f5c6b39e2bde3263d10e2f20e707d06b981e746fda83ef7772233db33ae7a4f2) Package name mimics the legitimate tailwindcss-forms plugin (repo field points at tailwindlabs/tailwindcss-forms) but the main entry src/index.js is an obfuscator.io-packed bundle (303-entry rotated string array, control-flow flattening) whose t

Sources

References

Freshness

Last verified in this catalog Oct 15, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.