Vulnerability-Lookup

MAL-2026-16362

Vulnerability from ossf_malicious_packages

Published

2026-09-21 18:56

Modified

2026-09-21 18:56

Summary

Malicious code in @uh-platform/webcard (npm)

Details

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

Source: amazon-inspector (2b9f7c250a563ff0915cbcdb1e2fa8a402094c030d7223a726c69ffea6de4b8c)

@uh-platform/webcard@99.0.0 declares a preinstall hook that runs index.js, which shells out to curl against a unique Burp Collaborator subdomain at http://pa33pg1od9cr4ffnrzec8864jvpmdd12.oastify.com/. This fires unconditionally on npm install and confirms code execution and DNS/HTTP callback from the installer's host to an attacker-controlled out-of-band collector. The package version is 99.0.0 under an org scope with a self-referential dependency on @uh-platform/webcard@1.0.2 and a redacted SDK description, matching the canonical dependency-confusion shape aimed at hijacking resolution of an internal scoped package name.

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": "f40ce98f65fd888ee41c09a8a85001c235a2ad90d53b385511bbb4603eb61122",
              "tlsh": "50e07d0448f9443631629455f91e481e75479801113af14769cf9a101780588c01d2da"
            },
            {
              "path": "package.json",
              "sha256": "2135afa924e2083f63eede0736dfd246053430ccc30cdf73897eb21d49c7381c",
              "tlsh": "e7e086705921a53315d616e288a994576261cf6b0408bc0c67cb143c85ef7b758ff35c"
            }
          ],
          "package_integrity": [
            {
              "filename": "webcard-99.0.0.tgz",
              "hashes": {
                "sha1": "f149499d40c54b202e46a404cd98397ebc25fc82",
                "sha512_sri": "sha512-t60sn+FKAAqj+9GlLHbRw0LyAxI7O/stk0NPKBnR+RIzOieuRDR2ZGTs4tSdJDuK63u/3sPksjQWaHltq+pwhQ=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "@uh-platform/webcard"
      },
      "versions": [
        "99.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-020269",
        "import_time": "2026-09-21T19:14:59.727304269Z",
        "modified_time": "2026-09-21T18:56:16Z",
        "sha256": "2b9f7c250a563ff0915cbcdb1e2fa8a402094c030d7223a726c69ffea6de4b8c",
        "source": "amazon-inspector",
        "versions": [
          "99.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (2b9f7c250a563ff0915cbcdb1e2fa8a402094c030d7223a726c69ffea6de4b8c)\n@uh-platform/webcard@99.0.0 declares a preinstall hook that runs index.js, which shells out to curl against a unique Burp Collaborator subdomain at http://pa33pg1od9cr4ffnrzec8864jvpmdd12.oastify.com/. This fires unconditionally on npm install and confirms code execution and DNS/HTTP callback from the installer\u0027s host to an attacker-controlled out-of-band collector. The package version is 99.0.0 under an org scope with a self-referential dependency on @uh-platform/webcard@1.0.2 and a redacted SDK description, matching the canonical dependency-confusion shape aimed at hijacking resolution of an internal scoped package name.\n",
  "id": "MAL-2026-16362",
  "modified": "2026-09-21T18:56:16Z",
  "published": "2026-09-21T18:56:16Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/@uh-platform/webcard/v/99.0.0"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in @uh-platform/webcard (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.

Detection rules are retrieved from Rulezet.

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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