Malicious code in n8n-nodes-moonlet-utils (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## 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.
MAL-2026-17177
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:MAL-2026-17177
n8n-nodes-moonlet-utils
Source reference: /affected/0/package/name
- Affected versions
- 1.0.0
Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"package": {
"name": "n8n-nodes-moonlet-utils",
"purl": "pkg:npm/n8n-nodes-moonlet-utils",
"ecosystem": "npm"
},
"versions": [
"1.0.0"
],
"database_specific": {
"cwes": [
{
"name": "Embedded Malicious Code",
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature."
}
],
"source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/n8n-nodes-moonlet-utils/MAL-2026-17177.json",
"indicators": {
"evidence_files": [
{
"path": "postinstall.js",
"tlsh": "3c0120e751f180116b3240dce063b53fa507f10266429de0f88c89234fc16bd493b9e8",
"sha256": "850a52ae587e25b5e32410204df3a326544b2cbcc3cfb874b936f5b127529d71"
}
],
"package_integrity": [
{
"hashes": {
"sha1": "ad49d72503edb02ac6fb528c478cc48a60c0eed9",
"sha512_sri": "sha512-dY0RsuSQroDN06PMWKZBLsQZuGTemoYRBGL8pWoH/Fgqqw533YG/XfUEm9ucsGsQOtUWhZktiajmpJnSHKVPCg=="
},
"filename": "n8n-nodes-moonlet-utils-1.0.0.tgz"
}
]
}
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #14785 · Revision 1
- Added to Heist Feed
- Publisher date