MAL-2026-13449 Malicious code in merchantweb-lang-cookie-reset (npm)

package.json declares the sole dependency packet-table-thread-stream as a direct tarball URL to a non-npm host (https://artifacts.yosiroute.com/npm/packet-table-thread-stream), with no version pin and no integrity hash. The shrinkwrap marks that dependency hasInstallScript: true, so on npm install npm fetches opaque code from artifacts.yosiroute.com and executes its lifecycle scripts on the installer's machine, bypassing npm registry scanning. The wrapper package itself is a disposable shim: index.js is trivial (only re-exports name/version), and package.json metadata is placeholder (author: Package Registry, description: Generated package, repo: github.com/example/...). The package's only functional effect on install is pulling attacker-controlled code from a non-registry host into the installer's dependency tree and running its install scripts.