MAL-2026-16282

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/tailwindcss-form/MAL-2026-16282.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16282
Aliases
  • GHSA-c8m9-qwg6-5cv9
Published
2026-09-18T04:31:16Z
Modified
2026-10-15T08:45:05Z
Summary
Malicious code in tailwindcss-form (npm)
Details

-= 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.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-020179",
            "import_time":  "2026-09-18T04:43:03.811978749Z",
            "modified_time":  "2026-09-18T04:31:16Z",
            "sha256":  "f5c6b39e2bde3263d10e2f20e707d06b981e746fda83ef7772233db33ae7a4f2",
            "source":  "amazon-inspector",
            "versions":  [
                "0.5.1"
            ]
        },
        {
            "id":  "GHSA-c8m9-qwg6-5cv9",
            "import_time":  "2026-10-15T08:34:11.901805343Z",
            "modified_time":  "2026-10-15T07:43:14Z",
            "ranges":  [
                {
                    "events":  [
                        {
                            "introduced":  "0"
                        }
                    ],
                    "type":  "SEMVER"
                }
            ],
            "sha256":  "a6360dfe9a149abb217abe22c0f48a3c37dffdc5b8ed3fb0e637a72cae6efbfc",
            "source":  "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / tailwindcss-form

Package

Name
tailwindcss-form
View open source insights on deps.dev
Purl
pkg:npm/tailwindcss-form

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.5.1

Database specific

cwes 
[
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    },
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files":  [
        {
            "path":  "src/index.js",
            "sha256":  "f5fd0ca9d7642087d0edf609c126197b4d958cc2e1d576c62d444287444e229d",
            "tlsh":  "9503e9957e81121a33434f7fba1bf4e4e12a1899369448c7d21cbc94f8e631ae9f6d34"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "tailwindcss-form-0.5.1.tgz",
            "hashes":  {
                "sha1":  "1d7a68025e061178406620b4843137ca0118dcf7",
                "sha512_sri":  "sha512-TPe4D+Ulrp4xP9svNKW1ZEbV/67x3xTUrj7clWHIxWnd5uPnPsTNuYo9N/4nJlk8l+YOS3nBAifq+tA3QhlBDg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/tailwindcss-form/MAL-2026-16282.json"