mal-2026-18701

{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/wxwxtt/MAL-2026-18701.json"
      },
      "package": {
        "ecosystem": "npm",
        "name": "wxwxtt",
        "purl": "pkg:npm/wxwxtt"
      },
      "versions": [
        "0.0.0",
        "0.0.1",
        "0.1.0",
        "1.0.0",
        "1.0.1",
        "1.1.0",
        "2.0.0",
        "2.0.1",
        "3.0.0",
        "99.0.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://cyberxyz.io"
      ],
      "name": "CyberXYZ",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "iocs": {
      "domains": [],
      "files": [
        {
          "digests": {
            "sha256": "e0fe093535c87f687d827c98cf22ad861855c642b296f2f7841e08af37bc56f6"
          },
          "paths": [
            "beacon.cjs"
          ]
        },
        {
          "digests": {
            "sha256": "a86a4da763bbb34c16f361abe7aab66d5df591b66867ac8160041f932159b08d"
          },
          "paths": [
            "index.js"
          ]
        }
      ],
      "ips": [],
      "urls": []
    }
  },
  "details": "wxwxtt is a dependency-confusion package (versions up to 99.0.1) from the same campaign as troubleshooting (MAL-2026-17641): a postinstall script runs beacon.cjs, which POSTs the installing host's name, install path and working directory to a hard-coded collector, and index.js, byte-identical to the troubleshooting payload (sha256 a86a4da763bbb34c16f361abe7aab66d5df591b66867ac8160041f932159b08d), does the same when imported.",
  "id": "MAL-2026-18701",
  "modified": "2026-11-05T05:15:06.055687977Z",
  "published": "2026-10-26T00:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/wxwxtt"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/MAL-2026-17641"
    }
  ],
  "schema_version": "1.9.2",
  "summary": "Malicious code in wxwxtt (npm)"
}