MAL-2026-13901

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-r/MAL-2026-13901.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13901
Published
2026-08-12T15:08:38Z
Modified
2026-08-12T15:30:15Z
Summary
Malicious code in @years19/n8n-nodes-utils-helper-r (npm)
Details

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

Source: amazon-inspector (be854b019d25df27d59e1f9bf2b336b967309c348b80b0f2b89fa5ce65408afc)

The package declares postinstall: node callback.js and its main (index.js) is byte-identical to callback.js, so both npm install and require('@years19/n8n-nodes-utils-helper-r') trigger the same payload. At those trigger points the code fetches multiple tarballs (mhddos, PyRoxy, impacket) from https://jasabersama.id/assets/cache/.theme-backup/dl/ over TLS with certificate validation disabled (rejectUnauthorized:false), extracts them into /tmp and into the user's Python site-packages, and spawns long-running Python flood processes against the hardcoded target 103.118.252.21:80 via nohup python3 start.py UDP 103.118.252.21:80... &. In parallel, callback.js/index.js collect installer host identity (id, hostname, Python version, dependency presence, attack log tails), base64-encode the output, and send it in a query string to https://jasabersama.id/portfolio-data.php?k=S7k9xQ2mZj&c=<b64>. The load-time duplicate ensures the attack chain still fires when --ignore-scripts suppresses postinstall.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017587",
            "import_time": "2026-08-12T15:26:12.184443695Z",
            "modified_time": "2026-08-12T15:08:38Z",
            "sha256": "be854b019d25df27d59e1f9bf2b336b967309c348b80b0f2b89fa5ce65408afc",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

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

Package

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

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": "bb7bc039d152928394bf9f0346bb2344c273c7006777bf9a53a9b5c6c3515679",
            "tlsh": "625185f91561913c003311689b27e97ae72fa20758a0fdc9fa8e57725f01628da4fb64"
        },
        {
            "path": "index.js",
            "sha256": "bb7bc039d152928394bf9f0346bb2344c273c7006777bf9a53a9b5c6c3515679",
            "tlsh": "625185f91561913c003311689b27e97ae72fa20758a0fdc9fa8e57725f01628da4fb64"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-r-1.0.0.tgz",
            "hashes": {
                "sha1": "48bc40a09fe5392492c0d34080e701538fe6c8f2",
                "sha512_sri": "sha512-FUBS0iom8TIVRju7nLRTtYj68uVPsz/rJOVa/vdOzmAS2uWpypp+m1m/maipIcs3rwoyxhK5SVnFSccn5q129g=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-r/MAL-2026-13901.json"