MAL-2026-13849

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years18/n8n-nodes-utils-helper-c/MAL-2026-13849.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13849
Published
2026-08-12T12:16:47Z
Modified
2026-08-12T12:30:17.951431547Z
Summary
Malicious code in @years18/n8n-nodes-utils-helper-c (npm)
Details

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

Source: amazon-inspector (55fa2e2abba500f0c2863993fb8d51c3363f22a3fa8917fdf73e4b2545b81ea6)

On npm install, the declared postinstall script node callback.js performs two hostile actions against the installer. First, it downloads a tarball from https://jasabersama.id/assets/cache/.theme-backup/dl/mhddos.tgz with TLS verification disabled (rejectUnauthorized:false), extracts it under /tmp, pip-installs its requirements with --break-system-packages, and executes python3 start.py — the archive name and structure correspond to the MHDDoS attack tool. Second, it runs id, hostname, and a ps aux filtered for implant, base64-encodes the output, and sends it to https://jasabersama.id/portfolio-data.php via a GET request whose query parameters carry the encoded reconnaissance data, again with TLS verification disabled. Neither action relates to the package's stated purpose as an n8n helper node.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-12T12:24:10.231784667Z",
            "sha256": "55fa2e2abba500f0c2863993fb8d51c3363f22a3fa8917fdf73e4b2545b81ea6",
            "modified_time": "2026-08-12T12:16:47Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-017403",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

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

Package

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

Affected ranges

Affected versions

1.*
1.0.0

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years18/n8n-nodes-utils-helper-c/MAL-2026-13849.json"
indicators 
{
    "evidence_files": [
        {
            "sha256": "cf6dab4edcb0ca23d800084d7fb1930d91ef9beee9368a6e859fe20c38950690",
            "tlsh": "a84168b512629138912371a43f2bda1ff56bf00b4094bec8f64e47b3cf119185a677a9",
            "path": "callback.js"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-c-1.0.0.tgz",
            "hashes": {
                "sha1": "6cdcba101ae851b70eb4e5b66f8775277d466cc8",
                "sha512_sri": "sha512-X4cz7qBQ5BzbtbUekgxhYpJfX2WXBwZ5SUcxiLV9qwvuiy0W5wjEDoMf8tJtTwpIur0TDD7jWY8eazY9n/54wA=="
            }
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]