{"id":"MAL-2026-18318","revision":"eef2d89c616d4380bd4aa03c4f94ca2f","records":[{"revision":"eef2d89c616d4380bd4aa03c4f94ca2f","observedAt":"2026-10-26T06:21:11.187+00:00","statement":{"source":"osv","id":"MAL-2026-18318","aliases":[],"title":"Malicious code in @greenlake/mfe-login-url (npm)","description":"@greenlake/mfe-login-url is a dependency-confusion package: it is described as a \"Compatibility shim\", uses inflated version numbers, and its README calls it an \"authorized dependency-confusion test\". Each listed version (2.0.0, 1.0.0, 3.0.0) has a postinstall script that runs `node beacon.cjs` on npm install, and index.js calls the same code when the package is imported; it POSTs the hostname, install path and current working directory over plain HTTP to `http://185.158.107.175:8787/_ah/dc`, and index.js exports a Proxy that returns no-op functions so builds importing the real package keep running. The npm account wiseke published 14 such packages under the @greenlake, @sxm-web, @drone-js-ext and @ppa-web-components scopes between 2026-10-23 21:23 and 2026-10-25 14:28 UTC; index.js is byte-identical to that of ph-common (MAL-2026-1809), which sends to the same endpoint.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (8669a0a99995d7a57a13210e4b7e8fe8449f746ab808271370776d072491b3db)\n@greenlake/mfe-login-url 2.0.0 presents itself as an empty compatibility shim but ships a beacon.cjs that POSTs installer hostname, install path, cwd, and Node version to the hardcoded plain-HTTP bare-IP endpoint http://185.158.107.175:8787/_ah/dc. The beacon fires in two places: package.json declares a postinstall script running `node beacon.cjs`, and index.js (a Proxy-based no-op stub designed not to break bundlers) invokes `require('./beacon.cjs').fire()` on import. The scope `@greenlake` and the stub-plus-beacon shape are consistent with a dependency-confusion reconnaissance package that silently confirms successful installs inside internal build systems and discloses host identifiers to an unknown operator. There is no legitimate functional code; the entire package exists to exfiltrate installer host metadata.\n","state":0,"publishedAt":"2026-10-23T21:33:58+00:00","modifiedAt":"2026-10-26T06:00:04.20857+00:00","affected":[{"ecosystem":"npm","name":"@greenlake/mfe-login-url","ranges":[],"versions":["2.0.0","1.0.0","3.0.0"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/@greenlake/mfe-login-url","https://www.npmjs.com/package/@greenlake/mfe-login-url/v/2.0.0","https://www.npmjs.com/package/@greenlake/mfe-login-url/v/3.0.0","https://www.npmjs.com/package/@greenlake/mfe-login-url/v/1.0.0"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-18318","license":"OSV · upstream source license applies","key":"osv:MAL-2026-18318","identifiers":["MAL-2026-18318"]},"retained":false,"historicalAffected":[]}],"coverage":[]}