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OpenAdvisories
Malicious MAL-2026-12416

poly-custom-api

npm package · versions 5.3.1

Reported Aug 5, 2026 · Updated Sep 24, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (a3263a9e2a986068fafa530a8e6862f9ba41cad05ecbd5b7b91752ca1c5af0c6)
The default export getPlugin in index.js constructs an HTTPS URL from split constants pointing at the bare IP 46.183.25.232:45000/icons/108, fetches the response, and passes the response field data.credits to new Function(...) with require, module, exports, process, Buffer, and global injected as parameters. Any caller invoking the exported function grants the remote endpoint arbitrary code execution in the Node.js process with full host privileges. The endpoint is disguised with icon/CDN vocabulary (iconDomain, font-awesome/svgs/brands, a 'bearrtoken' field literal 'logo') and an unused IconProvider map, while the package advertises itself as a 'custom API library' — the icon framing is cover for the fetch-and-eval path. The payload is mutable, unpinned, unauthenticated, and served over a bare-IP host unrelated to any legitimate publisher infrastructure.