Vulnerability-Lookup

mal-2026-16234

Vulnerability from ossf_malicious_packages

Published

2026-09-16 13:59

Modified

2026-09-16 13:59

Summary

Malicious code in strapi-plugin-os-rec (npm)

Details

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

Source: amazon-inspector (6b7f08345375bd52a25c34cc61a3e877c1a9f8f364a90a76b3a1eff55216ea03)

postinstall.js runs automatically on npm install and collects host reconnaissance data — os.hostname(), os.platform(), os.arch(), os.type(), os.release(), the current username, and enumeration of all network interface addresses — then transmits them as query-string parameters in an HTTP GET to hardcoded host 8y70jt07jkewju8wh0o1cgkaw12sqje8.oastify.com on port 80 at path /osinfo. The oastify.com subdomain is a Burp Collaborator out-of-band interaction endpoint used to receive reconnaissance beacons. The behavior is undocumented, fires on default install with no user interaction, and identifies the installing machine to an attacker-controlled listener.

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": "postinstall.js",
              "sha256": "b8039024b8b547e13b3afc5b8eecaf38ba92f50b4b486f2a4bf9b5e7b740a720",
              "tlsh": "a541ecd511ba666421b34ac5d59741214122e28a3e06f9fc3dec03e61fdaeecc2726f8"
            }
          ],
          "package_integrity": [
            {
              "filename": "strapi-plugin-os-rec-3.6.8.tgz",
              "hashes": {
                "sha1": "2f00b60dc9ab0c53724bf11efd32a07650d20a40",
                "sha512_sri": "sha512-t0j0Mt3omyqYyG3amYT7q0Y91PToNb8zP4isH0wrEsPEnw4MJp/cd0aCK/lvBt/o6Qp7H2WSQJlH+yGQPnQXWQ=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "strapi-plugin-os-rec"
      },
      "versions": [
        "3.6.8"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-020106",
        "import_time": "2026-09-16T14:19:38.273138843Z",
        "modified_time": "2026-09-16T13:59:37Z",
        "sha256": "6b7f08345375bd52a25c34cc61a3e877c1a9f8f364a90a76b3a1eff55216ea03",
        "source": "amazon-inspector",
        "versions": [
          "3.6.8"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (6b7f08345375bd52a25c34cc61a3e877c1a9f8f364a90a76b3a1eff55216ea03)\npostinstall.js runs automatically on npm install and collects host reconnaissance data \u2014 os.hostname(), os.platform(), os.arch(), os.type(), os.release(), the current username, and enumeration of all network interface addresses \u2014 then transmits them as query-string parameters in an HTTP GET to hardcoded host 8y70jt07jkewju8wh0o1cgkaw12sqje8.oastify.com on port 80 at path /osinfo. The oastify.com subdomain is a Burp Collaborator out-of-band interaction endpoint used to receive reconnaissance beacons. The behavior is undocumented, fires on default install with no user interaction, and identifies the installing machine to an attacker-controlled listener.\n",
  "id": "MAL-2026-16234",
  "modified": "2026-09-16T13:59:37Z",
  "published": "2026-09-16T13:59:37Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/strapi-plugin-os-rec/v/3.6.8"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in strapi-plugin-os-rec (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.