MAL-2026-13889

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-f/MAL-2026-13889.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13889
Published
2026-08-12T15:11:30Z
Modified
2026-08-12T15:30:13Z
Summary
Malicious code in @years19/n8n-nodes-utils-helper-f (npm)
Details

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

Source: amazon-inspector (0200e9a9dfdd3de819e8111363492aa235bd40790b89adc91a5d7e0a410ae120)

The package's postinstall (scripts.postinstall: node callback.js) collects host identity and environment fingerprint (output of id, hostname, Python user-site path with its contents filtered for offensive-tooling keywords such as pyroxy/impacket/multidict/socks/maxmind, presence of /tmp/mhddos and /tmp/implant, uptime), base64-encodes the result, and sends it as a query string to https://jasabersama.id/portfolio-data.php with TLS verification disabled (rejectUnauthorized: false). The request path also includes a hardcoded key k=S7k9xQ2mZj and a c= parameter carrying echo <b64> | base64 -d >> /tmp/n8n_rce_result.txt, matching a beacon/check-in shape for an attacker-controlled command channel. The package poses as an n8n community node (nodes/PwnNode.node.js exports only a stub description) while main (index.js) is identical to the postinstall exfil script, so both npm install and any require of the package trigger the beacon. The name mimics legitimate n8n-nodes-* community naming.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017606",
            "import_time": "2026-08-12T15:26:14.175721056Z",
            "modified_time": "2026-08-12T15:11:30Z",
            "sha256": "0200e9a9dfdd3de819e8111363492aa235bd40790b89adc91a5d7e0a410ae120",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @years19/n8n-nodes-utils-helper-f

Package

Name
@years19/n8n-nodes-utils-helper-f
View open source insights on deps.dev
Purl
pkg:npm/%40years19/n8n-nodes-utils-helper-f

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": "callback.js",
            "sha256": "527f25402cc3291fc3cc44b373722dd2ae95d847040fddfee8188abfe6ece103",
            "tlsh": "582153f55390e230547321a4bb6fec61dc2bf7060089f9c0f10d85730b2285826465bd"
        },
        {
            "path": "nodes/PwnNode.node.js",
            "sha256": "459f81ea09ad6732ede55a7a0eb7b36edb28d8f4c33a2f72c9695e76cb0dde7c",
            "tlsh": "3bd023074821758300779451bff1730f15308341d722dc3d58c4c70b132e54c6990d6d"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-f-1.0.0.tgz",
            "hashes": {
                "sha1": "94bd6f2fb58ede74a9f344ff1dd0847cbfdcffa5",
                "sha512_sri": "sha512-j4wBUl17DJu+me6gdKwQDxa1Qi+OzuPMWYHnMUM0Bkr9XUQpYb11HiD/EZ6ZaPoBfPFTV/OJfuCknEyPt4F9LQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-f/MAL-2026-13889.json"