MAL-2026-17745

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@tunstock/remact-dom/MAL-2026-17745.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17745
Published
2026-10-09T16:54:09Z
Modified
2026-10-09T17:26:07Z
Summary
Malicious code in @tunstock/remact-dom (npm)
Details

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

Source: amazon-inspector (32b1034bbfcc4ab6831b76348d4e6c18e427f283ae1cf1661d31f282a3416da8)

Package @tunstock/remact-dom is a typosquat of react-dom and ships a postinstall script (scripts/setup.js) that runs automatically on npm install. The script collects os.hostname(), os.platform(), os.arch(), Node version, public IP, current working directory, and the consuming project's package.json name and version, then POSTs the payload to the hardcoded lookalike host tele.metry.orgin.net at /api/v1/events via https.request. The exfiltrated payload hardcodes package: 'react-dom', version: '19.2.0', misrepresenting the shipped artifact's identity to the collection endpoint. Author/repo metadata uses lookalike names (m00r0ncr33w, github.com/m00r0ncr33w/act.git, morroncr0w.io). The destination host is not affiliated with any legitimate react-dom infrastructure. The combination of a top-100 package name impersonation, falsified identity in the beacon payload, and automatic install-time exfiltration of installer identifiers to a non-first-party lookalike domain is a victim-tagging reconnaissance beacon staging further supply-chain compromise.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-021337",
            "import_time": "2026-10-09T17:16:16.739606249Z",
            "modified_time": "2026-10-09T16:54:09Z",
            "sha256": "32b1034bbfcc4ab6831b76348d4e6c18e427f283ae1cf1661d31f282a3416da8",
            "source": "amazon-inspector",
            "versions": [
                "19.2.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @tunstock/remact-dom

Package

Name
@tunstock/remact-dom
View open source insights on deps.dev
Purl
pkg:npm/%40tunstock/remact-dom

Affected ranges

Affected versions

19.*
19.2.0

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": "scripts/setup.js",
            "sha256": "cf6ac3f629cf9efb399fd5288d939992cc76bcdd809abcc5a89763f4f06733b9",
            "tlsh": "e54123a599b282345ae3766c924f11062227d3237702afb4788cc3416f4753d72b17ed"
        },
        {
            "path": "package.json",
            "sha256": "b4279f1222ab7e1fcb901ed7ff0f4b5a4366744eafb391a9edc2859c206ddeeb",
            "tlsh": "6ff02e54cc24dd331dd816999d3a000a76115d1b4408bc1d37d7412ccb6e27b16fdb2d"
        }
    ],
    "package_integrity": [
        {
            "filename": "remact-dom-19.2.0.tgz",
            "hashes": {
                "sha1": "fc2e374b08ead016fb807c96438e3bbddf1aae3e",
                "sha512_sri": "sha512-dWk5oRIgtzrcYo3Xy9PzcsW4aT4bwQ5eDM+uYlrAgBK+5IczTP8q7Fkoeh1fJ4tc7wSt0ktk4Ic7C/e83v4vAg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@tunstock/remact-dom/MAL-2026-17745.json"