MAL-2026-4600 Malicious code in loading-session (npm)

Package advertises itself via a verbatim copy of pino's README, docs/, and index.d.ts (TypeScript types and documentation are pino's), but index.js does not implement a logger. The exported middleware unconditionally calls a helper that spawns node./lib/caller.js with detached: true, stdio: 'ignore', and child.unref() on every invocation (index.js lines 31-37), disconnecting the child from the parent's stdout/stderr. The referenced lib/caller.js is absent from this version's tarball, so the spawn fails at runtime today, but the launcher shape is structurally a dropper. Shipped alongside is lib/const.js, which stores base64-wrapped fields under credential-shaped names (DEV_API_KEY, DEV_SECRET_KEY, DEV_SECRET_VALUE); the DEV_API_KEY value decodes to an anonymous JSON-storage URL on api.jsonstorage.net, a host commonly abused for mutable second-stage payload delivery and exfiltration. The combination — pino documentation deception used as cover, covert detached child-process launcher in the only exported function, and a base64-obfuscated anonymous-storage endpoint with credential-shaped siblings — is the staging shape of a dropper/C2 client, not a logger.

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.