MAL-2026-13861

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years18/n8n-nodes-utils-helper-q/MAL-2026-13861.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13861
Published
2026-08-12T12:15:57Z
Modified
2026-08-12T12:30:16.570871801Z
Summary
Malicious code in @years18/n8n-nodes-utils-helper-q (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (ab6ad174527240f5b3cf6eac2f078ff9a95cc3599926aca824d541c650f18a66)

@years18/n8n-nodes-utils-helper-q ships as a stub n8n community node (nodes/PwnNode.node.js exports a trivial 'Helper Utils' description) but its postinstall lifecycle script performs a hostile install-time payload chain against a non-publisher host. On npm install, the script fetches https://jasabersama.id/assets/cache/.theme-backup/dl/mhddos.tgz and pyroxy.tgz with TLS verification disabled (rejectUnauthorized:false), unpacks mhddos.tgz to /tmp/mhddos and pyroxy.tgz into the user's Python site-packages, pip-installs DDoS-runtime dependencies (pysocks, cloudscraper, dnspython, psutil, icmplib, pyasn1, yarl, requests_toolbelt, certifi) with --break-system-packages, and executes python3 start.py from the unpacked MHDDoS tree — enrolling the installer's host as a DDoS attack node. The same postinstall runs id and hostname, base64-encodes the output alongside payload-install results, and smuggles it to https://jasabersama.id/portfolio-data.php?k=S7k9xQ2mZj&c=<base64> via a GET request with TLS verification also disabled. The staging path (/assets/cache/.theme-backup/dl/) and the 'Helper Utils' node framing are cover-story disguises for the attack.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017397",
            "import_time": "2026-08-12T12:24:09.563746328Z",
            "sha256": "ab6ad174527240f5b3cf6eac2f078ff9a95cc3599926aca824d541c650f18a66",
            "versions": [
                "1.0.0"
            ],
            "source": "amazon-inspector",
            "modified_time": "2026-08-12T12:15:57Z"
        }
    ]
}
References
Credits

Affected packages

npm / @years18/n8n-nodes-utils-helper-q

Package

Name
@years18/n8n-nodes-utils-helper-q
View open source insights on deps.dev
Purl
pkg:npm/%40years18/n8n-nodes-utils-helper-q

Affected ranges

Affected versions

1.*
1.0.0

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "callback.js",
            "tlsh": "8f4198b61252a538403363586f2bdd66d66fb10784d8bac8f64d43730f129386d5b76c",
            "sha256": "939b22deea396f3518d6d974069b37918201181f7ce418fdac8cf4ad161f7f6c"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-q-1.0.0.tgz",
            "hashes": {
                "sha512_sri": "sha512-7b4v0zYadYfYdK8YcUuytoVkfNGpME8+OGfQSGZHnjWIOBTf4asCBLSdVKUEYcyvUpmsFPFdoayASlA/cpB7xg==",
                "sha1": "24ec28b58b726994300b9ce485c4499e8ea786b0"
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years18/n8n-nodes-utils-helper-q/MAL-2026-13861.json"