MAL-2026-13902

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-s/MAL-2026-13902.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13902
Published
2026-08-12T15:07:57Z
Modified
2026-08-12T15:30:12Z
Summary
Malicious code in @years19/n8n-nodes-utils-helper-s (npm)
Details

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

Source: amazon-inspector (2955ed4843fe66495bbe53420b28e91530f48facae3aea0a9c3719676c30c0a5)

The package's postinstall script writes /tmp/attack.py — a Python UDP/TCP flooder targeting the hardcoded IP 103.118.252.21 on ports 80/443 for 600 seconds — and launches it in the background via nohup python3. The same code path is present in index.js, which is declared as the package main, so require()ing the module re-triggers the dropper even when installation runs with --ignore-scripts. Both files also collect installer host identity (id, hostname, process listing, /proc/loadavg), base64-encode the data, and send it via HTTPS GET to jasabersama.id/portfolio-data.php with TLS verification disabled (rejectUnauthorized: false). The package presents itself as an n8n utility node but contains no such functionality; its only behavior is host reconnaissance exfiltration and using the installer's machine as a DDoS bot against a third-party target.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017582",
            "import_time": "2026-08-12T15:26:11.714642761Z",
            "modified_time": "2026-08-12T15:07:57Z",
            "sha256": "2955ed4843fe66495bbe53420b28e91530f48facae3aea0a9c3719676c30c0a5",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

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

Package

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

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": "2d4a88d7ac61db1d7d9afad967897f9a65e2e2556019e3711f7749d0471ba641",
            "tlsh": "174183e33ab89434d5b32090a8a6ee42a627b10b5586fdd8f04dd6b20f6b03827914f4"
        },
        {
            "path": "index.js",
            "sha256": "2d4a88d7ac61db1d7d9afad967897f9a65e2e2556019e3711f7749d0471ba641",
            "tlsh": "174183e33ab89434d5b32090a8a6ee42a627b10b5586fdd8f04dd6b20f6b03827914f4"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-s-1.0.0.tgz",
            "hashes": {
                "sha1": "b4c88dbc58bb5550d768712177ba021630088222",
                "sha512_sri": "sha512-PSssE+YnRr4BT/UmB+jsDwT8iqVTTTcmgdQDUZzR4LgBB7fbDi0wMySKrm0XHObAnJN++hG1U8AOb17rBl7lAg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-s/MAL-2026-13902.json"