MAL-2026-5733 Malicious code in node-app-doctor (npm)
Malicious package
Published
MAL-2026-5733 is a malicious package: node-app-doctor (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-5733/ (Markdown: https://insights.sbomify.com/MAL-2026-5733/index.md)
- Package
- node-app-doctor
- Registry
- npm
What is MAL-2026-5733?
MAL-2026-5733 is a malicious package in node-app-doctor, published on 13 Jun 2026.
Official description
collect.js gathers host identifiers via os.hostname() and os.homedir(), reads local filesystem state with fs.existsSync, spawns child_process commands, and POSTs the collected data to the hardcoded endpoint http://aab.sportsontheweb.net. The destination domain is unrelated to any legitimate npm/Node tooling publisher and there is no plausible benign reason for a 'node app doctor' utility to ship installer/host telemetry to that host. The combination of system enumeration (hostname, home directory, child_process), filesystem inspection, and hardcoded plaintext HTTP POST to an unaffiliated domain is the standard host-fingerprint exfiltration shape.
What should I do about MAL-2026-5733?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.