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mal-2026-16179
Vulnerability from ossf_malicious_packages
Published
2026-09-15 15:55
Modified
2026-09-15 15:55
Summary
Malicious code in process-tailwind (npm)
Details

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

Source: amazon-inspector (d22d8ef47e17a005ea3305f7d97a3cb4de14f0a3a07e8a1e461e13d25e5e7432)

On require/import, index.js unconditionally calls initialize(), which spawns a detached, unref'd node loader.js child with stdio ignored and writes a PID file. loader.js fetches JSON from https://api.npoint.io/24c25d5f5fcbb0992a4f (a mutable third-party paste endpoint), base64-decodes the code field, and executes it via new Function('require','__dirname','__filename','module','exports', decodedCode)(...), granting the remote endpoint operator arbitrary code execution on the installer's host. The remote URL is stored in a constant misleadingly named API_KEY and surrounded by comments describing the loader as a sandboxed educational component, contradicting the actual fetch-decode-eval behavior.

CWE
  • CWE-506 - The product contains code that appears to be malicious in nature.

{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "loader.js",
              "sha256": "21bfaa51988b8dc7220f58d33e570d50ce43bc6103f872fda68db1eafe7729c6",
              "tlsh": "7e5121a60afb3512027770e6bb0b596a96bbe113314ec994fa9cc3d44fc2421d6d72dc"
            },
            {
              "path": "init.js",
              "sha256": "414208fccb89273ad5dc8787c58cadd5139bcc1b0d35fbc2f6a6719e46a1b405",
              "tlsh": "5c2142ab286a4b3981b2c4aa471fc51013a6d1777254f9a9f5ce87b56f0671cca238c8"
            }
          ],
          "package_integrity": [
            {
              "filename": "process-tailwind-1.1.99.tgz",
              "hashes": {
                "sha1": "52b4fa9bc62dc4600b22486d68df29a95d27e7e1",
                "sha512_sri": "sha512-Mb1ZdUeOWQSnozK9OB42i1FQDqDc4MCD12DaEbxVbY5PfOZ7EWzpJ4XTPwbqt1kY5sY9cS40hwzLhdQ00qfZrw=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "process-tailwind"
      },
      "versions": [
        "1.1.99"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-020063",
        "import_time": "2026-09-15T16:19:15.669518243Z",
        "modified_time": "2026-09-15T15:55:20Z",
        "sha256": "d22d8ef47e17a005ea3305f7d97a3cb4de14f0a3a07e8a1e461e13d25e5e7432",
        "source": "amazon-inspector",
        "versions": [
          "1.1.99"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (d22d8ef47e17a005ea3305f7d97a3cb4de14f0a3a07e8a1e461e13d25e5e7432)\nOn require/import, index.js unconditionally calls initialize(), which spawns a detached, unref\u0027d `node loader.js` child with stdio ignored and writes a PID file. loader.js fetches JSON from https://api.npoint.io/24c25d5f5fcbb0992a4f (a mutable third-party paste endpoint), base64-decodes the `code` field, and executes it via `new Function(\u0027require\u0027,\u0027__dirname\u0027,\u0027__filename\u0027,\u0027module\u0027,\u0027exports\u0027, decodedCode)(...)`, granting the remote endpoint operator arbitrary code execution on the installer\u0027s host. The remote URL is stored in a constant misleadingly named `API_KEY` and surrounded by comments describing the loader as a sandboxed educational component, contradicting the actual fetch-decode-eval behavior.\n",
  "id": "MAL-2026-16179",
  "modified": "2026-09-15T15:55:20Z",
  "published": "2026-09-15T15:55:20Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/process-tailwind/v/1.1.99"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in process-tailwind (npm)"
}



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