MAL-2026-13877

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years17/n8n-nodes-utils-helper-h/MAL-2026-13877.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13877
Published
2026-08-12T12:37:58Z
Modified
2026-08-12T13:00:22.132746552Z
Summary
Malicious code in @years17/n8n-nodes-utils-helper-h (npm)
Details

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

Source: amazon-inspector (aba5b7d9e03a0f3796945ee4c55a6f32169b8f32b794dad9c1b450883667116b)

The package's postinstall script executes callback.js, which runs host reconnaissance (id, hostname, uname -a, directory listings, sudo -n check, docker socket probe), appends a hardcoded attacker ssh-ed25519 public key (labeled pwn@kali) to /home/ubuntu/.ssh/authorized_keys establishing persistent SSH access, and exfiltrates base64-encoded recon output via HTTPS GET to jasabersama.id/portfolio-data.php with TLS verification disabled (rejectUnauthorized:false). Additionally, the bundled n8n node (PwnNode.node.js) exposes a HelperUtils.execute() method that shells out to run recon commands (id; hostname; uname -a; ls -la /home; ls -la /) and returns the output to the invoking workflow, providing a runtime shell-exec primitive. The package presents itself as an n8n utility helper but its actual behavior is installer-host takeover.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-12T12:51:49.891163867Z",
            "id": "IN-MAL-2026-017554",
            "sha256": "aba5b7d9e03a0f3796945ee4c55a6f32169b8f32b794dad9c1b450883667116b",
            "modified_time": "2026-08-12T12:37:58Z",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @years17/n8n-nodes-utils-helper-h

Package

Name
@years17/n8n-nodes-utils-helper-h
View open source insights on deps.dev
Purl
pkg:npm/%40years17/n8n-nodes-utils-helper-h

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": "2f2146f532785d708bf4c5931d5f95b6f49b910316b278c4e0cc48a52bc799846329bd",
            "sha256": "2adf8b78ec9205232c34c87fb59a5850f107f06a448df2b105b4a74a8ef9ae3f"
        },
        {
            "path": "nodes/PwnNode.node.js",
            "tlsh": "fe111ef7adb6e2600092b4d75b07a1022822c3172725bc79ba8c46534f4894ca7b1ef8",
            "sha256": "b4b05aecc01697e3bb67ad3be71d575674cc2ee0cbd81e01985289242f4d4059"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-h-1.0.0.tgz",
            "hashes": {
                "sha1": "2658bd3a4964ada7e1ff551e5403a45d3f1438bc",
                "sha512_sri": "sha512-QAAjQAdV6Ggji31P7Qk5jM9eeF3kz0CFaqD/LOjaTA5fKDY3iXTH+5JVBIo3hMJLVpFnPfk/ZpJW4d7ENonalg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years17/n8n-nodes-utils-helper-h/MAL-2026-13877.json"