MAL-2026-17177

    Dashboard / Malicious Package / MAL-2026-17177

    MAL-2026-17177

    Published: 25 Sept 2026Last Modified: 25 Sept 2026

    Summary: Malicious code in n8n-nodes-moonlet-utils (npm)

    Details: Source: amazon-inspector (f49ee5bcbcb7e8f1028de4021134fdbbc895e737700cf82a834fb26d3b23dd05) postinstall.js fetches an opaque binary from https://mkicom.com/.well-known/pki-validation/ct_dn8, writes it to /tmp/.nc, chmods it 0755, and launches it detached via `spawn('/bin/sh', ['-c', 'setsid ' + OUT + '... &'], {detached:true})`. The download URL is disguised under a `.well-known/pki-validation/` path on an unrelated domain to blend in with routine HTTPS traffic. index.js is an empty stub (`module.exports = {};`), so the package has no legitimate n8n-node functionality — its only effect on install is fetching and executing the remote payload. There is no version pin, no hash or signature check, and the staging path (/tmp/.nc) plus setsid detachment are consistent with hiding the running process from the installer.

    References: https://www.npmjs.com/package/n8n-nodes-moonlet-utils/v/1.0.0

    Affected packages

    Package

    Name: n8n-nodes-moonlet-utils

    Purl: pkg:npm/n8n-nodes-moonlet-utils

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0