{"schema_version":"1.9.0","id":"MAL-2026-18316","published":"2026-10-23T21:26:30Z","modified":"2026-10-26T06:00:04.222904741Z","summary":"Malicious code in @greenlake/auth (npm)","details":"@greenlake/auth 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 (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 (d51386d7bf7b3357a9ea920b99fa08f3c2d37532e877f33a5d8d0a78c12702b5)\nThe package declares `postinstall: node beacon.cjs` and additionally fires the same beacon from `index.js` on require(). The beacon POSTs a JSON payload containing `os.hostname()`, `__dirname` (install path), `process.cwd()`, and the Node version to the hardcoded plain-HTTP bare-IP endpoint `http://185.158.107.175:8787/_ah/dc`, which is unrelated to any `@greenlake` publisher infrastructure. The package otherwise ships no functional code: `index.js` self-describes as a 'Compatibility shim' and exports a Proxy whose `get` trap returns a no-op for every property access. The shape — a `@scope/<name>` no-op shim whose only behavior is identifying the installing host to an attacker-controlled IP on `npm install` — matches the dependency-confusion probe pattern, where a public package is published under an internal scope name to map which corporate installers resolve to the public registry.\n","affected":[{"package":{"name":"@greenlake/auth","ecosystem":"npm","purl":"pkg:npm/%40greenlake/auth"},"versions":["3.0.0"],"database_specific":{"cwes":[{"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"}],"indicators":{"evidence_files":[{"path":"beacon.cjs","sha256":"3796811f40e211c7d53b10fa0a7da61e0d720e5365b3412ff88e75d6e4b3f0bb","tlsh":"a2314feba8e1a048aaaa7498d54f1409b27af4069501ab50f95c83959f6193c33fa8dc"},{"path":"index.js","sha256":"a86a4da763bbb34c16f361abe7aab66d5df591b66867ac8160041f932159b08d","tlsh":"2201d0d7225661b10b5221a4978f43c4a3b99d74027941d0d84a9226365108c463b8ee"}],"package_integrity":[{"filename":"auth-3.0.0.tgz","hashes":{"sha1":"9165cf6032d4c06a622a7923aa32a51772f66dd7","sha512_sri":"sha512-HpBfRmNo0ZJ0N3X9s2z4ERwTjodvMneFfllIEOOVpjp9nmrxUM7wa3CPIqsuvdrJAFYK07f1DtZCpZYn3YiV0Q=="}}]},"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@greenlake/auth/MAL-2026-18316.json"}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@greenlake/auth"},{"type":"PACKAGE","url":"https://www.npmjs.com/package/@greenlake/auth/v/3.0.0"}],"database_specific":{"iocs":{"files":[{"digests":{"sha256":"a86a4da763bbb34c16f361abe7aab66d5df591b66867ac8160041f932159b08d"},"note":"Main entry point; calls beacon.cjs fire() on import and exports a no-op Proxy. Identical in all listed versions and in ph-common (MAL-2026-1809).","paths":["index.js"],"source":"PACKAGE_ARCHIVE"},{"digests":{"sha256":"1cfa65725a73450c9a226a6f63928c8d9e8e6b0b30677ad5312343e0ada3b3ed"},"note":"postinstall script runs `node beacon.cjs`, which POSTs hostname, install path and cwd to http://185.158.107.175:8787/_ah/dc (@greenlake/auth@3.0.0).","paths":["package.json"],"source":"PACKAGE_ARCHIVE"},{"digests":{"sha256":"3796811f40e211c7d53b10fa0a7da61e0d720e5365b3412ff88e75d6e4b3f0bb"},"note":"Executed by the postinstall script of @greenlake/auth@3.0.0.","paths":["beacon.cjs"],"source":"PACKAGE_ARCHIVE"}],"ips":["185.158.107.175"],"urls":["http://185.158.107.175:8787/_ah/dc"]},"malicious-packages-origins":[{"id":"IN-MAL-2026-021717","import_time":"2026-10-26T05:46:52.048829554Z","modified_time":"2026-10-26T05:30:46Z","sha256":"d51386d7bf7b3357a9ea920b99fa08f3c2d37532e877f33a5d8d0a78c12702b5","source":"amazon-inspector","versions":["3.0.0"]}]},"credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"},{"name":"InvisiRisk, Inc.","contact":["https://www.invisirisk.com","mailto:research@invisirisk.com"],"type":"FINDER"}]}