Malicious code in @dransay/address-validation (npm)

{
  "id": "a696c692d3993dd985f44fcde306632ac5f4bf1fe1184434c6d584dd0a98dce5",
  "url": "https://osv.dev/vulnerability/MAL-2026-17668",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Malicious code in @dransay/address-validation (npm)",
    "summary": "@dransay/address-validation@99.0.0 is a dependency-confusion probe claiming the internal `@dransay/*` namespace, not an identified public package. Its `preinstall` hook runs on npm install as `node beacon.js` and sends a DNS lookup and an HTTPS GET to `db3klhbi6i9hark1kegg174t38h33b6wt.oast.site`, using the package name in the request; npm account `0xamino_hunter` published it on 2026-10-08. --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (189df4f2830e64a9cfbd0bed6ae8357aff16dc5496d83c3e5e4bd9457b536fa7) @dransay/address-validation@99.0.0 declares a preinstall script (`node beacon.js`) that fires on `npm install` and performs a DNS lookup plus HTTPS GET to a subdomain of the Interactsh collaborator service `oast.site` with the path `/address-validation`. The implausibly high version number (99.0.0) and the preinstall callback are consistent with a dependency-confusion probe: any environment resolving this name reveals its egress IP and the package name to the operator of the collaborator host. No installer secrets, environment variables, or filesystem contents are read; the beacon transmits only install metadata (source IP, package name, DNS resolver). No code is fetched or executed from the remote host, and no persistence is established. ## Source: ossf-package-analysis (82ababa5637b2f53f5087a161eeba1b6ca6ddba6d31ebb7842614bf0da119fa7) The OpenSSF Package Analysis project identified '@dransay/address-validation' @ 99.0.0 (npm) as malic",
    "evidence": "osv:MAL-2026-17668",
    "products": [
      {
        "name": {
          "value": "@dransay/address-validation",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "99.0.0",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "MAL-2026-17668",
      "aliases": [
        "MAL-2026-17668"
      ],
      "affected": [
        {
          "package": {
            "name": "@dransay/address-validation",
            "purl": "pkg:npm/%40dransay/address-validation",
            "ecosystem": "npm"
          },
          "versions": [
            "99.0.0"
          ],
          "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."
              }
            ],
            "source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@dransay/address-validation/MAL-2026-17668.json",
            "indicators": {
              "evidence_files": [
                {
                  "path": "beacon.js",
                  "tlsh": "261132ad4ae42b00b1e9b4a488ce01e94b73d1a8844946c0e1cec3ab5fa347c17674fb",
                  "sha256": "56ca0c591ea77746ba3e98ce67ebc889aa08cd6cd9780df2ada894e1093de2d0"
                }
              ],
              "package_integrity": [
                {
                  "hashes": {
                    "sha1": "6377b5dbde9b77352830bbf6923966c6fc105b2f",
                    "sha512_sri": "sha512-M0+bLPsCYkHSUOBFLBZnT77+1dyGczp6mmLdC6cqd49aTom9pfFrHjNqXqG3Z9Vt3F4tU1qlasXNlFzHQi9Uzw=="
                  },
                  "filename": "address-validation-99.0.0.tgz"
                }
              ]
            }
          }
        }
      ],
      "modified": "2026-10-12T04:45:05.917726818Z",
      "provider": "osv",
      "references": [
        "https://www.npmjs.com/package/@dransay/address-validation/v/99.0.0",
        "https://www.npmjs.com/package/@dransay/address-validation"
      ],
      "provider_metadata": {
        "iocs": {
          "urls": [
            "https://db3klhbi6i9hark1kegg174t38h33b6wt.oast.site/address-validation"
          ],
          "files": [
            {
              "note": "preinstall script: node beacon.js",
              "paths": [
                "package.json"
              ],
              "source": "PACKAGE_ARCHIVE",
              "digests": {
                "sha256": "e5e9b0e8dd91bbe80d834b91ac03561f6e1cb8c83d291aab076f4dd03c9153f7"
              }
            },
            {
              "note": "Executed by the preinstall script of @dransay/address-validation@99.0.0.",
              "paths": [
                "beacon.js"
              ],
              "source": "PACKAGE_ARCHIVE",
              "digests": {
                "sha256": "56ca0c591ea77746ba3e98ce67ebc889aa08cd6cd9780df2ada894e1093de2d0"
              }
            }
          ],
          "domains": [
            "db3klhbi6i9hark1kegg174t38h33b6wt.oast.site"
          ]
        },
        "malicious-packages-origins": [
          {
            "sha256": "82ababa5637b2f53f5087a161eeba1b6ca6ddba6d31ebb7842614bf0da119fa7",
            "source": "ossf-package-analysis",
            "versions": [
              "99.0.0"
            ],
            "import_time": "2026-10-08T08:52:39.514186189Z",
            "modified_time": "2026-10-08T08:46:02Z"
          },
          {
            "id": "IN-MAL-2026-021214",
            "sha256": "189df4f2830e64a9cfbd0bed6ae8357aff16dc5496d83c3e5e4bd9457b536fa7",
            "source": "amazon-inspector",
            "versions": [
              "99.0.0"
            ],
            "import_time": "2026-10-08T17:17:19.367879884Z",
            "modified_time": "2026-10-08T16:54:22Z"
          }
        ]
      }
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 298567,
  "published_at": "2026-10-08T08:00:26+00:00"
}