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Malicious code in hardhat-spack (npm)

Type: advisorySource: OSV1 source record

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (e59c971c63de9d0a7f66c26093f528164990af10eca00a3a36b97d0c8b0a6d0d) The package is published as hardhat-spack but presents itself internally as a pino-like logger. Its main export is a middleware factory that spawns lib/caller.js as a detached child process. caller.js and lib/const.js define a fake process.env object whose DEV_API_KEY, DEV_SECRET_KEY, and DEV_SECRET_VALUE are base64 blobs; DEV_API_KEY decodes to https://iphub-encrypted.vercel.app/api/auth/f1f097d93c318c92f0c5. caller.js base64-decodes that URL, POSTs to it, and passes the response body to `new Function.constructor("require", s)` and invokes it with the real require, giving the fetched JavaScript full Node capabilities (filesystem, child_process, network). The request is retried up to five times and failures are swallowed. The destination host is disposable Vercel infrastructure unrelated to any declared purpose, the URL and credential-shaped values are concealed with base64, and the executed code is attacker-mutable at any time.

Announced Source revision 1
Original source ↗

MAL-2026-17560

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:MAL-2026-17560

hardhat-spack

Source reference: /affected/0/package/name

Affected versions
3.0.2

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "package": {
      "name": "hardhat-spack",
      "purl": "pkg:npm/hardhat-spack",
      "ecosystem": "npm"
    },
    "versions": [
      "3.0.2"
    ],
    "database_specific": {
      "cwes": [
        {
          "name": "Embedded Malicious Code",
          "cweId": "CWE-506",
          "description": "The product contains code that appears to be malicious in nature."
        }
      ],
      "source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/hardhat-spack/MAL-2026-17560.json",
      "indicators": {
        "evidence_files": [
          {
            "path": "lib/caller.js",
            "tlsh": "f301bd4e22fd245c015112e6171fe0326010e4673d46d5d4378cd7425faa6bd2aa3bef",
            "sha256": "88d00cec2a6488c81d5080323a4ba81d789ec641345f2d177399cbc0527a74b8"
          }
        ],
        "package_integrity": [
          {
            "hashes": {
              "sha1": "5114952a0f6f925f77d7babfba8c0ac9348a4f2f",
              "sha512_sri": "sha512-gLNdS+RHbNFWUUxslSPxb5DjpjTYZFlr2XdU85v5qKE3I6Avjq3HI6Ig/GvyDiAhI4NI+YhQYEVtsap0Br7dDQ=="
            },
            "filename": "hardhat-spack-3.0.2.tgz"
          }
        ]
      }
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#83615 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement