Vulnerability-Lookup

MAL-2026-16465

Vulnerability from ossf_malicious_packages

Published

2026-09-23 04:56

Modified

2026-09-23 04:56

Summary

Malicious code in helpersutils-dev-tools (npm)

Details

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

Source: amazon-inspector (85b7208dea3cf1742ac01332c17db9df968fd4a105fbccaf0b5388162b0f3673)

The package presents itself as 'Development utility helpers' but its main module executes an IIFE at require-time that issues an Image request to http://5.189.173.113:8899/csp-edu with document.domain appended as a query parameter. A sibling file bypass.js contains an equivalent beacon to http://5.189.173.113:8899/csp. Both destinations are a hardcoded bare IP over plain HTTP, unrelated to any advertised functionality, and receive host-context data (the consuming page's domain) whenever the module is loaded.

CWE

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

Credits

Amazon Inspector inspector-research@amazon.com

JSON

To clipboard

{
  "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": "index.js",
              "sha256": "513bf3bb90c0a9e18d2ee1d2d5e0980311e544ea7a739a31b01730050b1072eb",
              "tlsh": "b1b09bac142c6564ccda501c316f594bd8e47d411c935545d516555407241117562b55"
            },
            {
              "path": "bypass.js",
              "sha256": "bb5567181ca8455a609d18285df69a78c847e188124f29159fecdacedb764cc5",
              "tlsh": "65b012bc050c577448c2e842b492ecd3eda53d4f9df2eae5d60d19147142c26b976747"
            }
          ],
          "package_integrity": [
            {
              "filename": "helpersutils-dev-tools-1.0.11.tgz",
              "hashes": {
                "sha1": "3495ac80408eaf684a2ea89f3bdc4aea1b4904e9",
                "sha512_sri": "sha512-7s7S4e3U7jvVW4+VeZyTq23tKP44/254h8yQAY9k+IwipW7C9KtY28QzqxH0xCHRSpsTFD+5Q8Hoc9s0rQdnQQ=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "helpersutils-dev-tools"
      },
      "versions": [
        "1.0.11"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-020457",
        "import_time": "2026-09-23T05:18:35.434266907Z",
        "modified_time": "2026-09-23T04:56:40Z",
        "sha256": "85b7208dea3cf1742ac01332c17db9df968fd4a105fbccaf0b5388162b0f3673",
        "source": "amazon-inspector",
        "versions": [
          "1.0.11"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (85b7208dea3cf1742ac01332c17db9df968fd4a105fbccaf0b5388162b0f3673)\nThe package presents itself as \u0027Development utility helpers\u0027 but its main module executes an IIFE at require-time that issues an Image request to http://5.189.173.113:8899/csp-edu with document.domain appended as a query parameter. A sibling file bypass.js contains an equivalent beacon to http://5.189.173.113:8899/csp. Both destinations are a hardcoded bare IP over plain HTTP, unrelated to any advertised functionality, and receive host-context data (the consuming page\u0027s domain) whenever the module is loaded.\n",
  "id": "MAL-2026-16465",
  "modified": "2026-09-23T04:56:40Z",
  "published": "2026-09-23T04:56:40Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/helpersutils-dev-tools/v/1.0.11"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in helpersutils-dev-tools (npm)"
}

Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted