MAL-2026-13592
Vulnerability from ossf_malicious_packages
Published
2026-08-07 12:29
Modified
2026-08-07 12:29
Summary
Malicious code in dolyame-ui-pageheader (npm)
Details

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

Source: amazon-inspector (d7db486beb59bdbcb457c1ab82344d60854b4fdd7c89a535a33f6a23fe55547e)

The package advertises itself as 'Common TypeScript definitions' but its main entry (index.js) unconditionally requires./bridge on load. _bridge.js selects a platform-specific payload path, fetches an opaque binary over HTTPS from one of four Cloudflare workers.dev hosts (oob-worker.cf100-416.workers.dev, cf102-baf, cf101-adf, cf103-070.workers.dev) with a DNS-TXT chunked base64 fallback via *.dl.wel1.ru, writes it to /tmp or %TEMP% under disguised names such as dotnet_diag.exe or.cache_, chmods 0755, and spawns it detached via spawn('/bin/sh', ['-c', filePath + ' &']) or the Windows equivalent — with no hash or signature verification. Endpoint hostnames and the 'child_process' API name are assembled from split string arrays (['oob-worker.cf100-4','16.wo','rkers.dev'].join(''); require('child_'+'process')) to defeat static string scans. lib/telemetry.js carries the same fetch/write/chmod/detached-spawn primitives as a redundant load-time execution channel. Installing or requiring this package grants full-host remote code execution to the operator of the workers.dev endpoints.

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

{
  "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": "_bridge.js",
              "sha256": "d1b28144b79cdf27ed2f535a7c29685e57deea14e5f3d8c43a6f88274cd1b5a7",
              "tlsh": "d8a1b85516fa70180b92e5c8841f8826719af65337c0e8d4fb4c66948f9a129c3f2dfd"
            },
            {
              "path": "lib/telemetry.js",
              "sha256": "fe32098b0d0a8b55fbe1d5efa7c23632db5d1629750461060079d46b8a111db7",
              "tlsh": "f6733f4966fb10214263b0685fbb40437635c4072a4aed5dba9c43ec9f8db3896f1fb9"
            }
          ],
          "package_integrity": [
            {
              "filename": "dolyame-ui-pageheader-35.8.1.tgz",
              "hashes": {
                "sha1": "dd5311803efa482da3fcd94125cd8f87a73691b9",
                "sha512_sri": "sha512-7vSwQkwa5pgCv8mcRaJ7t66BbBLiyIO6CsFs3YGqMXQ/3jlUkJCctBu6B/cbmW0kzIMJymB26OjqE7Apz+qRcw=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "dolyame-ui-pageheader"
      },
      "versions": [
        "35.8.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-017002",
        "import_time": "2026-08-07T12:51:21.716040131Z",
        "modified_time": "2026-08-07T12:29:28Z",
        "sha256": "d7db486beb59bdbcb457c1ab82344d60854b4fdd7c89a535a33f6a23fe55547e",
        "source": "amazon-inspector",
        "versions": [
          "35.8.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (d7db486beb59bdbcb457c1ab82344d60854b4fdd7c89a535a33f6a23fe55547e)\nThe package advertises itself as \u0027Common TypeScript definitions\u0027 but its main entry (index.js) unconditionally requires./_bridge on load. _bridge.js selects a platform-specific payload path, fetches an opaque binary over HTTPS from one of four Cloudflare workers.dev hosts (oob-worker.cf100-416.workers.dev, cf102-baf, cf101-adf, cf103-070.workers.dev) with a DNS-TXT chunked base64 fallback via *.dl.wel1.ru, writes it to /tmp or %TEMP% under disguised names such as dotnet_diag_\u003chex\u003e.exe or.cache_\u003chex\u003e, chmods 0755, and spawns it detached via spawn(\u0027/bin/sh\u0027, [\u0027-c\u0027, filePath + \u0027 \u0026\u0027]) or the Windows equivalent \u2014 with no hash or signature verification. Endpoint hostnames and the \u0027child_process\u0027 API name are assembled from split string arrays ([\u0027oob-worker.cf100-4\u0027,\u002716.wo\u0027,\u0027rkers.dev\u0027].join(\u0027\u0027); require(\u0027child_\u0027+\u0027process\u0027)) to defeat static string scans. lib/telemetry.js carries the same fetch/write/chmod/detached-spawn primitives as a redundant load-time execution channel. Installing or requiring this package grants full-host remote code execution to the operator of the workers.dev endpoints.\n",
  "id": "MAL-2026-13592",
  "modified": "2026-08-07T12:29:28Z",
  "published": "2026-08-07T12:29:28Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/dolyame-ui-pageheader/v/35.8.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in dolyame-ui-pageheader (npm)"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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