Malicious code in kmf-vendor-pack (npm)

{
  "id": "80fe8143b3f81d23808d3d66e8744ff21f0f230afe36a189e9988e3b5d1a36db",
  "url": "https://osv.dev/vulnerability/MAL-2026-17744",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Malicious code in kmf-vendor-pack (npm)",
    "summary": "--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (c6e1c289f2890e0e06ab31a8d6cf5dbc8deabc26054cb44a0c60295c29a74506) kmf-vendor-pack@100.100.100 is a dependency-confusion lure. package.json declares `postinstall: node postinstall.js`, which require()s a shipped prebuilt Linux x64 N-API addon at prebuilds/linux-x64/addon.node. The addon's napi_register_module_v1 Init routine calls fork(), opens a socket, connects to the hardcoded bare IP 64.181.165.115, and sends `POST /dc HTTP/1.0` with body `h=&p=&u=&r=`, leaking the installing host's name, the resolved package name, and the configured npm registry URL to attacker infrastructure over plain TCP. The native binary ships with no accompanying C/C++ sources, no binding.gyp, and no legitimate functionality matching the stated `Frontend utilities` purpose; the JS entry point is an empty `module.exports = {}`. The version number 100.100.100 is implausibly high and consistent with resolution-winning against an internal package of the same name. Installing this package causes immediate outbound disclosure of install-environment and internal-registry metadata to the attacker. ## Source: ossf-package-analysis (90252f22765869df637f77df2754cd36724812550151c9c7c53926bc83daad2e) The OpenSSF Package Analysis project identified 'kmf-vendor-pack' @ 99.0.0 (npm) as malicious. It is considered malicious because: - The package communicates with a domain associated with malicious activity.",
    "evidence": "osv:MAL-2026-17744",
    "products": [
      {
        "name": {
          "value": "kmf-vendor-pack",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "99.0.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "100.100.101",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "100.100.100",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "100.100.106",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "MAL-2026-17744",
      "aliases": [
        "MAL-2026-17744"
      ],
      "affected": [
        {
          "package": {
            "name": "kmf-vendor-pack",
            "purl": "pkg:npm/kmf-vendor-pack",
            "ecosystem": "npm"
          },
          "versions": [
            "99.0.0",
            "100.100.101",
            "100.100.100",
            "100.100.106"
          ],
          "database_specific": {
            "cwes": [
              {
                "name": "Embedded Malicious Code",
                "cweId": "CWE-506",
                "description": "The product contains code that appears to be malicious in nature."
              },
              {
                "name": "Embedded Malicious Code",
                "cweId": "CWE-506",
                "description": "The product contains code that appears to be malicious in nature."
              },
              {
                "name": "Embedded Malicious Code",
                "cweId": "CWE-506",
                "description": "The product contains code that appears to be malicious in nature."
              },
              {
                "name": "Embedded Malicious Code",
                "cweId": "CWE-506",
                "description": "The product contains code that appears to be malicious in nature."
              },
              {
                "name": "Embedded Malicious Code",
                "cweId": "CWE-506",
                "description": "The product contains code that appears to be malicious in nature."
              }
            ],
            "source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/kmf-vendor-pack/MAL-2026-17744.json",
            "indicators": {
              "evidence_files": [
                {
                  "path": "package.json",
                  "tlsh": "50e068f85535dab73dc412d88686a50bf1a2cd1a0004bc049be7238d4ad91f35bbe9a9",
                  "sha256": "c00f5e4b31d7ff303956007a49d6758283a750fa6cb3a0a49eaa7cd330c0078a"
                }
              ],
              "package_integrity": [
                {
                  "hashes": {
                    "sha1": "e2e8a1b510ff4d08c1a4c2eb9323d6352c5725f9",
                    "sha512_sri": "sha512-zrmEJCRcINDZPd2ARMcbrgStgT9MzZdc5rS6cJjaPHulo0ghMQYdMOpo6akgrc6gl2jgpMtozatE3D58YI8M7w=="
                  },
                  "filename": "kmf-vendor-pack-99.0.0.tgz"
                }
              ]
            }
          }
        }
      ],
      "modified": "2026-10-12T06:00:06.244415714Z",
      "provider": "osv",
      "references": [
        "https://www.npmjs.com/package/kmf-vendor-pack/v/99.0.0",
        "https://www.npmjs.com/package/kmf-vendor-pack/v/100.100.101",
        "https://www.npmjs.com/package/kmf-vendor-pack/v/100.100.100",
        "https://www.npmjs.com/package/kmf-vendor-pack/v/100.100.106",
        "https://www.npmjs.com/package/kmf-vendor-pack"
      ],
      "provider_metadata": {
        "iocs": {
          "urls": [
            "https://db4fe7a2e2lvaraia8k0n4amgw4ir83az.oast.pro/dc?pkg=kmf-vendor-pack&h="
          ],
          "files": [
            {
              "note": "postinstall script sends the hostname and OS username to an oast.pro out-of-band collector.",
              "paths": [
                "package.json"
              ],
              "source": "PACKAGE_ARCHIVE",
              "digests": {
                "sha256": "c00f5e4b31d7ff303956007a49d6758283a750fa6cb3a0a49eaa7cd330c0078a"
              }
            }
          ],
          "domains": [
            "db4fe7a2e2lvaraia8k0n4amgw4ir83az.oast.pro"
          ]
        },
        "malicious-packages-origins": [
          {
            "sha256": "90252f22765869df637f77df2754cd36724812550151c9c7c53926bc83daad2e",
            "source": "ossf-package-analysis",
            "versions": [
              "99.0.0"
            ],
            "import_time": "2026-10-09T16:20:00.871582705Z",
            "modified_time": "2026-10-09T15:55:48Z"
          },
          {
            "id": "IN-MAL-2026-021336",
            "sha256": "95ddc660098b1c73a1899ad3fe471b53ce562ca033669fa64622ff386d774129",
            "source": "amazon-inspector",
            "versions": [
              "99.0.0"
            ],
            "import_time": "2026-10-09T17:16:16.600140031Z",
            "modified_time": "2026-10-09T16:53:57Z"
          },
          {
            "id": "IN-MAL-2026-021417",
            "sha256": "f2805ea966820afc15ecfc2c876f4bc88c8b1a0e7e3899c385e850bb605cb9c2",
            "source": "amazon-inspector",
            "versions": [
              "100.100.101"
            ],
            "import_time": "2026-10-11T14:18:03.888657998Z",
            "modified_time": "2026-10-11T13:56:17Z"
          },
          {
            "id": "IN-MAL-2026-021427",
            "sha256": "c6e1c289f2890e0e06ab31a8d6cf5dbc8deabc26054cb44a0c60295c29a74506",
            "source": "amazon-inspector",
            "versions": [
              "100.100.100"
            ],
            "import_time": "2026-10-11T14:18:04.680206044Z",
            "modified_time": "2026-10-11T13:57:51Z"
          },
          {
            "id": "IN-MAL-2026-021401",
            "sha256": "da36b284f0e3c1150c401af2face61a158511258362b7f83a66438b1206eaf49",
            "source": "amazon-inspector",
            "versions": [
              "100.100.106"
            ],
            "import_time": "2026-10-11T14:18:02.586269204Z",
            "modified_time": "2026-10-11T13:53:50Z"
          }
        ]
      }
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 298650,
  "published_at": "2026-10-09T15:49:57+00:00"
}