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Malicious code in tailwindcss-contact-form (npm)

GHSA-cvv5-f2cc-586q

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm tailwindcss-contact-form

    Affected
    every version
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
not scored
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

--- _-= Per source details. Do not edit below this line.=-_

Source: amazon-inspector (0b198bc6d5af472f9cb1f1db25acf0215b77c04a742fcce81fef5565d76d837b) Package presents itself as the Tailwind CSS forms plugin (README is a verbatim copy of @tailwindcss/forms and its package.json points at github.com/tailwindlabs/tailwindcss-forms), and the README instructs users to require('tailwindcss-contact-form') from their tailwind.config.js. The single main file src/index.js is heavily obfuscated (obfuscator.io-style rotated string array, hex identifiers, control-flow flattening) and, when required, imports node:http/node:https and spawn from node:child_process, queries public Ethereum RPCs (eth.drpc.org, ethereum-rpc.publicnode.com, 1rpc.io/eth, public.blastapi.io) and the Blockscout txlist API for outbound transactions of the hardcoded address 0xa322E5f3D311D3080e6f0121063e9aDC2490Ef1a, extracts a base64 payload from transaction data (x-payload-B64), and executes it by spawning node. This…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from osv record MAL-2026-16251

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: GHSA-cvv5-f2cc-586q

Advisory: Malicious code in tailwindcss-contact-form (npm)
IDs: GHSA-cvv5-f2cc-586q
Record: https://patchnext.com/advisories/mal-2026-16251 (revision 1, source checked 4 Nov 2026, 06:00 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Unrated
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm tailwindcss-contact-form: affected every version

## Suggested inspection (read-only)
- `npm ls tailwindcss-contact-form --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on tailwindcss-contact-form.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/MAL-2026-16251 (OSV record MAL-2026-16251 lists affected ranges: npm tailwindcss-contact-form >=0)

Commands are suggestions: review each one before running it.

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