MAL-2026-13906

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-w/MAL-2026-13906.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13906
Published
2026-08-12T15:07:14Z
Modified
2026-08-12T15:30:12Z
Summary
Malicious code in @years19/n8n-nodes-utils-helper-w (npm)
Details

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

Source: amazon-inspector (a28114a258d77475252e0b9f61b21d3f82f8d7d9e2d37bbce9d4a70c2ff0bfa5)

The package's postinstall entry (callback.js) and its declared main entry (index.js) contain byte-identical top-level code that (1) writes a Python UDP/TCP flooding script to /tmp/attack2.py targeting the hardcoded IP 103.118.252.21 for 900 seconds and launches it via nohup python3 /tmp/attack2.py... &, and (2) collects the installer's shell id, hostname, /proc/loadavg and process listing, base64-encodes the blob, and sends it as a query parameter to https://jasabersama.id/portfolio-data.php with TLS verification disabled (rejectUnauthorized: false). Both triggers fire automatically: the postinstall runs on npm install, and the identical main module runs again when n8n loads the community node via require(). The package presents itself as an n8n utility helper but ships no functional node code matching that purpose.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017577",
            "import_time": "2026-08-12T15:26:11.353848364Z",
            "modified_time": "2026-08-12T15:07:14Z",
            "sha256": "a28114a258d77475252e0b9f61b21d3f82f8d7d9e2d37bbce9d4a70c2ff0bfa5",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

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

Package

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

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": "2b32e5688aaeb3911c8d3da7927f1569ff2987e60b24c626f0e0295d2f3769e9",
            "tlsh": "1b4188d23eb49574d5b3605099a6de42e727f00b56c2edd8f04dd7b20f5a03427914f4"
        },
        {
            "path": "index.js",
            "sha256": "2b32e5688aaeb3911c8d3da7927f1569ff2987e60b24c626f0e0295d2f3769e9",
            "tlsh": "1b4188d23eb49574d5b3605099a6de42e727f00b56c2edd8f04dd7b20f5a03427914f4"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-w-1.0.0.tgz",
            "hashes": {
                "sha1": "be1c4caf0d90248e0c8d5d77eb64d93d90146a95",
                "sha512_sri": "sha512-ctsFD5ZK0ry6Nt5ztFPAhLYFiQbUYkCiNAlPAhgj0H5zMiHQJD7jaI/znGLdLwHpC3BRgcGxotQqk60TsSFGyw=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-w/MAL-2026-13906.json"