Vulnerability-Lookup

MAL-2026-16479

Vulnerability from ossf_malicious_packages

Published

2026-09-23 14:11

Modified

2026-09-23 14:11

Summary

Malicious code in simplenewnpmpackage (npm)

Details

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

Source: amazon-inspector (76315a0ce965c3a1f5b6342caa9d9ce8db4b341b641b2dbb696ebd52bd6149ec)

On require/import, index.js issues an HTTPS GET to a hardcoded interactsh OAST subdomain (dapnhid534ch06s9vpm0mbg1httu5gytc.oast.fun) with the installer's os.platform() and os.hostname() as query parameters. The package ships no other functionality; its main module exists solely to fire this out-of-band beacon on load. oast.fun is a public out-of-band interaction collector used to receive callbacks from targets, and the hardcoded subdomain is bound to a specific listener controlled by whoever published the package. This is the canonical dependency-confusion / namesquat probe pattern, in which a package is published to catch internal-name mis-resolutions and report back the host that installed it.

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": "29f8a760d525b0f525b499d5308c9f08aa57480c9a4e3e9dc943d61011dc72fa",
              "tlsh": "ede068f882a34b725f7087c41041244eb657657a6a60e740b38552245bd3db19924aec"
            }
          ],
          "package_integrity": [
            {
              "filename": "simplenewnpmpackage-1.0.2.tgz",
              "hashes": {
                "sha1": "c8071751a4ed46b519094ac418915993bc845788",
                "sha512_sri": "sha512-vZ8IsYUntQ9/9ACEU6zwB6be48eONW7A4je3MF/hXBl5BcnvrJ9w63/ENUI46IJ4paoAE0gnRNfRiaUfRB3qrQ=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "simplenewnpmpackage"
      },
      "versions": [
        "1.0.2"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-020493",
        "import_time": "2026-09-23T14:19:31.916654955Z",
        "modified_time": "2026-09-23T14:11:07Z",
        "sha256": "76315a0ce965c3a1f5b6342caa9d9ce8db4b341b641b2dbb696ebd52bd6149ec",
        "source": "amazon-inspector",
        "versions": [
          "1.0.2"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (76315a0ce965c3a1f5b6342caa9d9ce8db4b341b641b2dbb696ebd52bd6149ec)\nOn require/import, index.js issues an HTTPS GET to a hardcoded interactsh OAST subdomain (dapnhid534ch06s9vpm0mbg1httu5gytc.oast.fun) with the installer\u0027s os.platform() and os.hostname() as query parameters. The package ships no other functionality; its main module exists solely to fire this out-of-band beacon on load. oast.fun is a public out-of-band interaction collector used to receive callbacks from targets, and the hardcoded subdomain is bound to a specific listener controlled by whoever published the package. This is the canonical dependency-confusion / namesquat probe pattern, in which a package is published to catch internal-name mis-resolutions and report back the host that installed it.\n",
  "id": "MAL-2026-16479",
  "modified": "2026-09-23T14:11:07Z",
  "published": "2026-09-23T14:11:07Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/simplenewnpmpackage/v/1.0.2"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in simplenewnpmpackage (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.

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