MAL-2026-13916

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years20/n8n-nodes-utils-helper-g/MAL-2026-13916.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13916
Published
2026-08-12T15:40:27Z
Modified
2026-08-12T16:03:34.348716842Z
Summary
Malicious code in @years20/n8n-nodes-utils-helper-g (npm)
Details

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

Source: amazon-inspector (55ed8dc4c0467877e129dc4b2035e154dc4fec24bfda412d649fa02ed7150133)

On npm install, the package's postinstall script (duplicated in the main module) executes shell commands to collect host identity (id, hostname, pwd), locates n8n installation directories, enumerates running n8n processes, and reads n8n-related environment variables. The collected output is base64-encoded and sent via HTTPS GET to the hardcoded endpoint https://jasabersama.id/portfolio-data.php with TLS certificate validation disabled (rejectUnauthorized: false). The request includes a static key parameter k=S7k9xQ2mZj and a c= parameter containing a shell command payload (echo <base64> | base64 -d >> /tmp/n8n_rce_result.txt), and the endpoint filename plus payload shape indicate an RCE staging harness. The package's advertised utility helper purpose is a cover; the only substantive content is the install-time recon and beacon.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017613",
            "import_time": "2026-08-12T15:53:00.90021593Z",
            "sha256": "55ed8dc4c0467877e129dc4b2035e154dc4fec24bfda412d649fa02ed7150133",
            "modified_time": "2026-08-12T15:40:27Z",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @years20/n8n-nodes-utils-helper-g

Package

Name
@years20/n8n-nodes-utils-helper-g
View open source insights on deps.dev
Purl
pkg:npm/%40years20/n8n-nodes-utils-helper-g

Affected ranges

Affected versions

1.*
1.0.0

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "callback.js",
            "tlsh": "3f2123fd6360d23015a370946bbefe16dc9bf90f0495bfc8b10d09b3075286c56415b8",
            "sha256": "d5d2241459727b04725af5d47259ee52980a473b2746cf7ac8966a0faf305a4d"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-g-1.0.0.tgz",
            "hashes": {
                "sha1": "95c07a2af8b115767d58756cfedb2299b3ead81f",
                "sha512_sri": "sha512-zBpYP+Ckd7w5Igt57nMJY1QZ/ow6ymTJg/4jI+DDRTrmtiD4+6NHojTSbV/nZAvAy+XL19xM9EA0hBsf3ug81g=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years20/n8n-nodes-utils-helper-g/MAL-2026-13916.json"