{
  "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": "big.js",
              "sha256": "eb6ce18afdacb4c6b3eb97521184a1330adcab077dcb12f5342ed2ee3a49447c",
              "tlsh": "ebc2658c3ac67579593363788f465088eb38525712c8b286b4ae63b46f78cb107b5fdc"
            }
          ],
          "package_integrity": [
            {
              "filename": "new-ecro-1-0.3.9.tgz",
              "hashes": {
                "sha1": "fcb596e099fc0856a0217a3bf6554aba25824ea0",
                "sha512_sri": "sha512-1vRDxfgRZyrpvnERul7HaYJcTb/HW4m5Yz8r6HsroDzvlN4SNN8TE+jfhdrBO6JjzdfS840tSoFbj81X4TFw1w=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "new-ecro-1"
      },
      "versions": [
        "0.3.9",
        "0.1.9"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-007060",
        "import_time": "2026-06-19T07:17:16.909021254Z",
        "modified_time": "2026-06-19T05:20:04Z",
        "sha256": "01b0b55fd906ade779ab708144b0becba338debc03c56a2fe0b6468b1d12808e",
        "source": "amazon-inspector",
        "versions": [
          "0.3.9"
        ]
      },
      {
        "id": "IN-MAL-2026-007061",
        "import_time": "2026-06-19T07:17:16.967727952Z",
        "modified_time": "2026-06-19T05:20:05Z",
        "sha256": "0c4e172aa83f2b8742fb014ea649490c87815573cab692ea74eb402ee23f935c",
        "source": "amazon-inspector",
        "versions": [
          "0.1.9"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (0c4e172aa83f2b8742fb014ea649490c87815573cab692ea74eb402ee23f935c)\nPackage `new-ecro-1` impersonates the legitimate `big.js` library by shipping its source verbatim (banner, license, and homepage pointing at MikeMcl/big.js). Inside the load-time IIFE in both `big.js` and `big.mjs` at line 606, an injected block silently executes `const doc = require(\"parket-slot\"); doc.from_str().then(e =\u003e {}).catch(e =\u003e {})`, wrapped in a try/catch that swallows all errors. The `parket-slot` package is not declared in this manifest\u0027s `dependencies` (which instead lists `new-solt-1`), so the require resolves to whatever loader-controlled package happens to be present in the surrounding install tree, executing its `from_str()` on import. The combination of name-impersonation, undeclared cross-package require, and silent error suppression is a loader stub for attacker-controlled code that runs the moment any consumer imports this module.\n",
  "id": "MAL-2026-6198",
  "modified": "2026-06-19T07:18:54Z",
  "published": "2026-06-19T05:20:04Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/new-ecro-1/v/0.3.9"
    },
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/new-ecro-1/v/0.1.9"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in new-ecro-1 (npm)"
}