MAL-2026-17177

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/n8n-nodes-moonlet-utils/MAL-2026-17177.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17177
Published
2026-09-25T02:39:58Z
Modified
2026-09-25T03:00:07Z
Summary
Malicious code in n8n-nodes-moonlet-utils (npm)
Details

-= 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.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-020538",
            "import_time":  "2026-09-25T02:45:28.750708802Z",
            "modified_time":  "2026-09-25T02:39:58Z",
            "sha256":  "f49ee5bcbcb7e8f1028de4021134fdbbc895e737700cf82a834fb26d3b23dd05",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / n8n-nodes-moonlet-utils

Package

Name
n8n-nodes-moonlet-utils
View open source insights on deps.dev
Purl
pkg:npm/n8n-nodes-moonlet-utils

Affected ranges

Affected versions

1.*
1.0.0

Database specific

cwes 
[
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files":  [
        {
            "path":  "postinstall.js",
            "sha256":  "850a52ae587e25b5e32410204df3a326544b2cbcc3cfb874b936f5b127529d71",
            "tlsh":  "3c0120e751f180116b3240dce063b53fa507f10266429de0f88c89234fc16bd493b9e8"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "n8n-nodes-moonlet-utils-1.0.0.tgz",
            "hashes":  {
                "sha1":  "ad49d72503edb02ac6fb528c478cc48a60c0eed9",
                "sha512_sri":  "sha512-dY0RsuSQroDN06PMWKZBLsQZuGTemoYRBGL8pWoH/Fgqqw533YG/XfUEm9ucsGsQOtUWhZktiajmpJnSHKVPCg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/n8n-nodes-moonlet-utils/MAL-2026-17177.json"