Malicious code in ap3-foundations-ui (npm)

{
  "id": "bf005fa47c48fc4e45bb450ef0b5907c1f9ebb3b29f3b8fd6767895414babc79",
  "url": "https://osv.dev/vulnerability/MAL-2026-17806",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Malicious code in ap3-foundations-ui (npm)",
    "summary": "ap3-foundations-ui describes itself as a security research PoC for dependency confusion and does not identify an upstream package it copies. Its `preinstall` hook runs `node index.js` during `npm install`; the script sends the package name and version, hostname, username, home directory, working directory, platform, architecture, and CI flag to `https://webhook.site/7dbd5e4e-3156-427f-b383-30c14d845587`. The npm account vikkuthetester22 published it on 2026-10-12. --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (7469eefaab624821647b4e412c4ceac1f422d4857b8484767041fdc355398477) The package's preinstall hook runs index.js, which collects installer host identifiers (os.hostname(), os.userInfo().username, os.homedir(), process.cwd(), os.platform(), os.arch(), and process.env.CI) and POSTs them as JSON to a hardcoded third-party collector at https://webhook.site/7dbd5e4e-3156-427f-b383-30c14d845587. The behavior fires automatically on `npm install` without caller consent. The package is published at version 99.0.1 under a name consistent with an internal/private namespace, matching the shape of a dependency-confusion beacon used to confirm successful name hijack in a target environment. The exfiltrated fields identify the installing host, user account, working directory, and CI status — information useful for targeting follow-on attacks against the organization whose build pulled the package. ## Source: ghsa-malware (2a08a293df7b3bdb17da1149",
    "evidence": "osv:MAL-2026-17806",
    "products": [
      {
        "name": {
          "value": "ap3-foundations-ui",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "99.0.1",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "MAL-2026-17806",
      "aliases": [
        "GHSA-g9j6-f655-22p6",
        "MAL-2026-17806"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "ap3-foundations-ui",
            "purl": "pkg:npm/ap3-foundations-ui",
            "ecosystem": "npm"
          },
          "versions": [
            "99.0.1"
          ],
          "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."
              }
            ],
            "source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ap3-foundations-ui/MAL-2026-17806.json",
            "indicators": {
              "evidence_files": [
                {
                  "path": "index.js",
                  "tlsh": "9f1140e016b16b300ff69bc13885dd0512b6e522b10f7de0bb8912e4578e6f900729f9",
                  "sha256": "289c3b12fdd5798f6c38b731035ab96abc736f80a0c226d279fd96ebfbe2075a"
                }
              ],
              "package_integrity": [
                {
                  "hashes": {
                    "sha1": "7d9d180ba806adbf9ad68bf58e8e14296f096ec3",
                    "sha512_sri": "sha512-66vCx1gasRYVhVMz5QOAWWJq/ff7sSK+LkQx0mAJhbc+pt9RjkAsHiXNXUpVjIDA003Yy3SHkYN8akmlLis7EQ=="
                  },
                  "filename": "ap3-foundations-ui-99.0.1.tgz"
                }
              ]
            }
          }
        }
      ],
      "modified": "2026-10-26T01:45:24.192372895Z",
      "provider": "osv",
      "references": [
        "https://www.npmjs.com/package/ap3-foundations-ui/v/99.0.1",
        "https://www.npmjs.com/package/ap3-foundations-ui",
        "https://github.com/advisories/GHSA-g9j6-f655-22p6"
      ],
      "provider_metadata": {
        "iocs": {
          "urls": [
            "https://webhook.site/7dbd5e4e-3156-427f-b383-30c14d845587"
          ],
          "files": [
            {
              "note": "preinstall script: node index.js",
              "paths": [
                "package.json"
              ],
              "source": "PACKAGE_ARCHIVE",
              "digests": {
                "sha256": "44180ea5d9e3df9978bc4c5a0be8635656f7ca8b73e9ddd9e1d384d673e53604"
              }
            },
            {
              "note": "Executed by the preinstall script of ap3-foundations-ui@99.0.1.",
              "paths": [
                "index.js"
              ],
              "source": "PACKAGE_ARCHIVE",
              "digests": {
                "sha256": "289c3b12fdd5798f6c38b731035ab96abc736f80a0c226d279fd96ebfbe2075a"
              }
            }
          ]
        },
        "malicious-packages-origins": [
          {
            "id": "IN-MAL-2026-021459",
            "sha256": "7469eefaab624821647b4e412c4ceac1f422d4857b8484767041fdc355398477",
            "source": "amazon-inspector",
            "versions": [
              "99.0.1"
            ],
            "import_time": "2026-10-12T04:58:42.447698328Z",
            "modified_time": "2026-10-12T04:56:13Z"
          },
          {
            "id": "GHSA-g9j6-f655-22p6",
            "ranges": [
              {
                "type": "SEMVER",
                "events": [
                  {
                    "introduced": "0"
                  }
                ]
              }
            ],
            "sha256": "2a08a293df7b3bdb17da1149e35d01f30c8b4e27a90bae6dd0b5c93e2e67c606",
            "source": "ghsa-malware",
            "import_time": "2026-10-26T01:39:10.991345485Z",
            "modified_time": "2026-10-26T01:28:15Z"
          }
        ]
      }
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 446544,
  "published_at": "2026-10-12T00:57:37+00:00"
}