MAL-2026-13919

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years20/n8n-nodes-utils-helper-j/MAL-2026-13919.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13919
Published
2026-08-12T15:40:05Z
Modified
2026-08-12T16:03:34.313637234Z
Summary
Malicious code in @years20/n8n-nodes-utils-helper-j (npm)
Details

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

Source: amazon-inspector (ae821bd0afd5bdf483830eddac1c875d1ec3d229ca2078aa4fe7d88e9573eefb)

@years20/n8n-nodes-utils-helper-j 1.0.0 runs a postinstall script (index.js/callback.js) that executes id and hostname on the installer host, base64-encodes the output, and sends it over HTTPS GET to jasabersama.id/portfolio-data.php with TLS verification disabled (rejectUnauthorized: false). The same script writes attacker-controlled content into /tmp/n8nrceresult.txt and /tmp/filter_pwned.txt, creates /tmp/src-repo, and configures a git filter.evil.smudge filter that shells out on checkout, staging follow-on command execution. The package presents itself as an n8n community node (nodes/PwnNode.node.js) but ships no legitimate node functionality; the recon/RCE-staging payload is the entire install-time behavior and fires automatically on npm install.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017611",
            "import_time": "2026-08-12T15:53:00.714523003Z",
            "sha256": "ae821bd0afd5bdf483830eddac1c875d1ec3d229ca2078aa4fe7d88e9573eefb",
            "versions": [
                "1.0.0"
            ],
            "source": "amazon-inspector",
            "modified_time": "2026-08-12T15:40:05Z"
        }
    ]
}
References
Credits

Affected packages

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

Package

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

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": "493100b41255de335072b490e963f9a6e94bf30b288a6dd8e5a891721b02c94db02498",
            "sha256": "b79ee181cae907674ae42fbb68270e1544711f045aaa65c4925a052ec4bb5423"
        },
        {
            "path": "package.json",
            "tlsh": "a9f0ab02cc720f3321cd6b6b189e8141aa246e9b949c7c2c73cf010c87dc6f52abe68d",
            "sha256": "c0f992def18cb87162f49492d638a072b286da6c89915cf48212a3e9d2efd0d8"
        }
    ],
    "package_integrity": [
        {
            "filename": "n8n-nodes-utils-helper-j-1.0.0.tgz",
            "hashes": {
                "sha512_sri": "sha512-l00TIdmSEMHljMhn6hct26auPKR2+paCgMc84/BEOU8R22zUjT9nSV6hHmpof6X1oOj1/llyrhjUuFH29bpLXg==",
                "sha1": "9276061f2319a44d7b2c76bbc1b409e95efe4c8a"
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@years20/n8n-nodes-utils-helper-j/MAL-2026-13919.json"