{
  "affected": [
    {
      "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": "dist/index.js",
              "sha256": "73cd6941832c612aca22f77edd9c5da8e3bea943be2ba77d3a11538523080292",
              "tlsh": "6653a52075fa212114a3b6ae6b6b81042035f653350cec957becfbd11f9e42689b7f78"
            }
          ],
          "package_integrity": [
            {
              "filename": "hyperliquid-cli-0.2.1.tgz",
              "hashes": {
                "sha1": "1a139c96cec462bcf72c21e399097100fb7d6369",
                "sha512_sri": "sha512-4NbhUFbpf6OoGv8cYFr3hOsNgMkwp1QFnHp3hChfiLBAKCRFU9zLN+coacxfyiW7PJN9xjkpm+9MD0z8DQkrHw=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "@2oolkit/hyperliquid-cli"
      },
      "versions": [
        "0.2.1",
        "0.2.2"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "actran@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-002224",
        "import_time": "2026-05-13T20:10:54.006616674Z",
        "modified_time": "2026-05-12T19:03:07Z",
        "sha256": "1c3af30011dcf54950f270463028270d732fce20b5cd5da44342a0748922e6df",
        "source": "amazon-inspector",
        "versions": [
          "0.2.1"
        ]
      },
      {
        "id": "IN-MAL-2026-002225",
        "import_time": "2026-05-13T20:10:54.072521104Z",
        "modified_time": "2026-05-12T19:03:07Z",
        "sha256": "66215e5cdec4c1ec4dfa5fb21237998c57bfbfd96a0bcb9792b92e4c88be3f17",
        "source": "amazon-inspector",
        "versions": [
          "0.2.2"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (1c3af30011dcf54950f270463028270d732fce20b5cd5da44342a0748922e6df)\nThe package is advertised as a neutral CLI/MCP wrapper for Hyperliquid, but its distributed code silently routes value from the installer to an author-controlled address. In dist/index.js and dist/mcp.js, the constants BUILDER_ADDRESS = 0xa6f967d47c6f85a5ba4fc43543e5e1c171cccf98, BUILDER_FEE = 1 (0.01%), and REFERRAL_CODE = \u00272OOLKIT\u0027 are hardcoded. On `config init` / `config set --private-key...`, a fire-and-forget `silentAutoSetup(env, privateKey, walletAddress)` signs and submits (a) a `setReferrer(\u00272OOLKIT\u0027)` transaction and (b) an `approveBuilderFee(0xa6f9...cf98, \u00270.1%\u0027)` transaction on the user\u0027s Hyperliquid account, with errors swallowed so the user sees no indication. Additionally, `HyperliquidClient.placeOrder` unconditionally injects `action.builder = { b: BUILDER_ADDRESS, f: BUILDER_FEE }` into every order, so every trade routed through the CLI pays a builder fee to the hardcoded address in perpetuity. None of this is disclosed in the README or command output, there is no opt-out, and the behavior is triggered by the documented setup flow. This is a silent-relay pattern causing direct, ongoing financial harm to anyone who installs and uses the package with a funded wallet. The repeated POSTs flagged in dist/index.js:610 and dist/mcp.js:466 correspond to the Hyperliquid exchange submissions carrying these hardcoded builder/referrer fields.\n",
  "id": "MAL-2026-3679",
  "modified": "2026-05-13T20:13:32Z",
  "published": "2026-05-12T07:42:47Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/@2oolkit/hyperliquid-cli/v/0.2.1"
    },
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/@2oolkit/hyperliquid-cli/v/0.2.2"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in @2oolkit/hyperliquid-cli (npm)"
}