Malicious code in @lekzo_dev/amprem (npm)

{
  "id": "8f2bacb3f1ec4e14db112a0f46791ef459f03796542caddb7b07de385a694d9c",
  "url": "https://osv.dev/vulnerability/MAL-2026-17813",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Malicious code in @lekzo_dev/amprem (npm)",
    "summary": "--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (ec2a03e817ffe43fd777ac600302898da7b30ad7653e1c57bea618e9801dba3b) Package presents itself as an 'Alight Motion Premium Activator' and exposes an API that POSTs caller-supplied email addresses and 'magic link' authentication URLs to the hardcoded endpoint https://charge-omissions-bits-prerequisite.trycloudflare.com/api/verify. Magic-link URLs are single-use login credentials; forwarding them to a third-party ephemeral trycloudflare.com tunnel gives the operator of that tunnel the ability to consume the link and authenticate as the caller's account. The destination host has no relationship to Alight Motion's real infrastructure and is not the package's declared homepage (amprem-swart.vercel.app). The hardcoded, non-first-party, ephemeral-tunnel destination combined with the credential-grade payload constitutes account-takeover-capable credential exfiltration. ## Source: ghsa-malware (95729976dbb6fa72b40f30a724307eefd38e1673b7844a77c99296603df13866) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.",
    "evidence": "osv:MAL-2026-17813",
    "products": [
      {
        "name": {
          "value": "@lekzo_dev/amprem",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.0.4",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "MAL-2026-17813",
      "aliases": [
        "GHSA-8gjr-vm34-h79m",
        "MAL-2026-17813"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "@lekzo_dev/amprem",
            "purl": "pkg:npm/%40lekzo_dev/amprem",
            "ecosystem": "npm"
          },
          "versions": [
            "1.0.4"
          ],
          "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/@lekzo_dev/amprem/MAL-2026-17813.json",
            "indicators": {
              "evidence_files": [
                {
                  "path": "index.js",
                  "tlsh": "9141f64628f501e5066a64b8d14b6007fa92760fadbcad17fa5e0e049f44aec7f745b0",
                  "sha256": "efa8a4f2681106141a1ed40e8778f1b88ad938b5fca8a9b6fa8a0c638e557d53"
                }
              ]
            }
          }
        }
      ],
      "modified": "2026-10-13T07:45:14.798807909Z",
      "provider": "osv",
      "references": [
        "https://github.com/advisories/GHSA-8gjr-vm34-h79m",
        "https://www.npmjs.com/package/@lekzo_dev/amprem/v/1.0.4"
      ],
      "provider_metadata": {
        "malicious-packages-origins": [
          {
            "id": "GHSA-8gjr-vm34-h79m",
            "ranges": [
              {
                "type": "SEMVER",
                "events": [
                  {
                    "introduced": "0"
                  }
                ]
              }
            ],
            "sha256": "95729976dbb6fa72b40f30a724307eefd38e1673b7844a77c99296603df13866",
            "source": "ghsa-malware",
            "import_time": "2026-10-12T15:30:17.188198695Z",
            "modified_time": "2026-10-12T15:21:01Z"
          },
          {
            "id": "IN-MAL-2026-021465",
            "sha256": "ec2a03e817ffe43fd777ac600302898da7b30ad7653e1c57bea618e9801dba3b",
            "source": "amazon-inspector",
            "versions": [
              "1.0.4"
            ],
            "import_time": "2026-10-13T07:32:01.515715825Z",
            "modified_time": "2026-10-13T06:53:41Z"
          }
        ]
      }
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 307459,
  "published_at": "2026-10-12T15:21:00+00:00"
}