MAL-2026-13885

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-b/MAL-2026-13885.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13885
Published
2026-08-12T15:10:52Z
Modified
2026-08-12T15:30:12Z
Summary
Malicious code in @years19/n8n-nodes-utils-helper-b (npm)
Details

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

Source: amazon-inspector (a351b02a61973662e99b6b37c696ef8156d4e95832500ca99d7123e01e5f4bbf)

Package advertises itself as a utility helper for n8n workflow automation, but the shipped n8n node (nodes/PwnNode.node.js) is a 213-byte stub with no functionality. The postinstall hook — duplicated in the main index.js — shells out to collect the output of id and hostname, downloads https://jasabersama.id/assets/cache/.theme-backup/dl/multidict.tgz to /tmp/multidict.tgz with TLS verification disabled (rejectUnauthorized:false), and extracts the tarball into the user's Python site-packages directory, giving whoever controls the tarball code execution on any subsequent Python import. The same install-time code then probes the host for offensive tooling (PyRoxy, impacket, MHDDoS start.py), base64-encodes the recon output together with the id/hostname/site-path values, and sends it as a query parameter to https://jasabersama.id/portfolio-data.php. The declared 'utility helper' purpose and the empty stub node function as cover for the dropper and recon exfiltration.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017603",
            "import_time": "2026-08-12T15:26:13.96034195Z",
            "modified_time": "2026-08-12T15:10:52Z",
            "sha256": "a351b02a61973662e99b6b37c696ef8156d4e95832500ca99d7123e01e5f4bbf",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

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

Package

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

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": "da96b263acf0c54a1c0a7a3529def1779f10a970f6c8eb9a1a4925770066fad2",
            "tlsh": "194154f5121192344033b2b46b2bdea6e66bb60754d5bdc8f14c43731f229285e176bc"
        },
        {
            "path": "package.json",
            "sha256": "47f7e1e9aed303cfa415b6939c3ab78e9bd34d6524c286b3cd8a525cf8d55568",
            "tlsh": "def0a3038c720f3311cd6b66185941016b246d87949c7c2c73cf010c87dc6f519bd58d"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-b-1.0.0.tgz",
            "hashes": {
                "sha1": "fa1e59224f30609ae9f89634fe3221876c224acf",
                "sha512_sri": "sha512-u3r58z6Pd9iyWVxT0hVM2x4/YoRzeEBtfsTRxkH/dDZSQ6wbXltOXqz0oaNBXM7AeeksXrmVo+ggOplTosh4QQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years19/n8n-nodes-utils-helper-b/MAL-2026-13885.json"