MAL-2026-10511

Dashboard / Malicious Package / MAL-2026-10511

MAL-2026-10511

Summary: Malicious code in type-swap (npm)

Details: Source: amazon-inspector (6db27d60a7dec38dafef8ed810203dc0130cf340eae162410dfcb7b21a4e2658) The package's declared main entry (index.js) exports a middleware factory that, when invoked by a consumer, spawns lib/caller.js as a detached child process with stdio ignored and unref()'d, concealing it from the parent. lib/caller.js performs an HTTPS GET to https://jsonhosting.com/api/json/e16583b1/raw, extracts a JavaScript payload from a `cookie` field in the response, and executes it via `new Function.constructor("require", s)(require)`, granting the remote host arbitrary code execution in the installer's Node process with `require` bound. Additional remote endpoints (https://jsonkeeper.com/b/XRGF3 in lib/caller.js and https://jsonkeeper.com/b/4NAKK in lib/const.js) are stored base64-encoded under a fake `process.env` object keyed as `DEV_API_KEY`, staged for the fetched payload. The package name and README impersonate an unrelated logging library. Source: ghsa-malware (b9d1682a8365cd245b7f4173a1d95003f7c9dd41e0d3a0635cae503d6e3eef81) 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.

References: https://www.npmjs.com/package/type-swap/v/3.1.3, https://github.com/advisories/GHSA-w8hw-4vch-mrj4