Vulnerability-Lookup

MAL-2026-17190

Vulnerability from ossf_malicious_packages

Published

2026-09-26 15:13

Modified

2026-09-26 15:13

Summary

Malicious code in cma-self-hosted-sandbox-cf (npm)

Details

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

Source: amazon-inspector (d91a7568b717361d5b3727d46e8bf567fc038f95c5fa22c5222a272460bb9f35)

package.json declares a preinstall hook that runs index.js on npm install. index.js collects the machine's hostname, current user info, home directory, configured DNS servers, and the contents of /etc/passwd and /etc/hosts, then HTTPS POSTs the JSON payload to the hardcoded Burp Collaborator subdomain 49bl3t5yt786ymbtth24nnlbs2ytmka9.oastify.com. The behavior fires automatically on install with no user interaction, the destination is an attacker-controlled out-of-band interaction host unrelated to any legitimate package function, and the collected data comprises installer-side system identifiers and local account/host files. This is a dependency-confusion/recon exfiltration payload with no other functionality present in the package.

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": "fa43f4bd7d96ea8586808a750372d218b48a3a0bf0943f1310cf296b77e52305",
              "tlsh": "bb41259562c917330de214c0660c70852399f9777259a9d076cf4296af869f8bb316f3"
            }
          ],
          "package_integrity": [
            {
              "filename": "cma-self-hosted-sandbox-cf-1.0.0.tgz",
              "hashes": {
                "sha1": "83157fa69aa97b8d23922b3c72d352429c142f10",
                "sha512_sri": "sha512-qRbU3aMPgajHHxrME++GmSoMK2L8vXsmvNTve0OHPFOLT9dKoIZoNT22w6Q2W/jAJwG5IgCzGO61AxTzXzkaQg=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "cma-self-hosted-sandbox-cf"
      },
      "versions": [
        "1.0.0"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-020562",
        "import_time": "2026-09-26T15:16:15.725067117Z",
        "modified_time": "2026-09-26T15:13:31Z",
        "sha256": "d91a7568b717361d5b3727d46e8bf567fc038f95c5fa22c5222a272460bb9f35",
        "source": "amazon-inspector",
        "versions": [
          "1.0.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (d91a7568b717361d5b3727d46e8bf567fc038f95c5fa22c5222a272460bb9f35)\npackage.json declares a preinstall hook that runs index.js on npm install. index.js collects the machine\u0027s hostname, current user info, home directory, configured DNS servers, and the contents of /etc/passwd and /etc/hosts, then HTTPS POSTs the JSON payload to the hardcoded Burp Collaborator subdomain 49bl3t5yt786ymbtth24nnlbs2ytmka9.oastify.com. The behavior fires automatically on install with no user interaction, the destination is an attacker-controlled out-of-band interaction host unrelated to any legitimate package function, and the collected data comprises installer-side system identifiers and local account/host files. This is a dependency-confusion/recon exfiltration payload with no other functionality present in the package.\n",
  "id": "MAL-2026-17190",
  "modified": "2026-09-26T15:13:31Z",
  "published": "2026-09-26T15:13:31Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/cma-self-hosted-sandbox-cf/v/1.0.0"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in cma-self-hosted-sandbox-cf (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

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