MAL-2026-12792

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/gs-uitk-testing-utils/MAL-2026-12792.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12792
Published
2026-08-05T13:35:32Z
Modified
2026-08-05T14:37:13.699427291Z
Summary
Malicious code in gs-uitk-testing-utils (npm)
Details

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

Source: amazon-inspector (58475142ea32c554345513c67fd5ed8a8d6b60fb151e675249e4eb83984c8300)

gs-uitk-testing-utils@9.9.11 declares an npm install lifecycle script (scripts.install='node index.js') that loads lib/core.js. That module collects the installer's OS username (os.userInfo().username), hostname (os.hostname()), and the basename of the current working directory (process.cwd()), joins them with a hardcoded campaign marker 'goldman2' and a timestamp, and issues dns.resolve4() against a subdomain of oob.sl4x0.xyz, leaking host-identifying data over DNS. The destination domain, the target module names ('os', 'dns', 'process', 'userInfo', 'hostname', 'cwd'), and the marker are reconstructed at runtime from char-code arrays in lib/b02e30.js and lib/6ad264.js to hide them from static inspection. The package name mimics an internal 'gs-uitk-*' UI-toolkit namespace and pairs with the marker 'goldman2' and an author email at the same sl4x0.xyz domain used for exfiltration, consistent with dependency-confusion reconnaissance against a specific organization. The exfiltration fires automatically on npm install and on require of the package.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "modified_time": "2026-08-05T13:35:32Z",
            "versions": [
                "9.9.11"
            ],
            "sha256": "58475142ea32c554345513c67fd5ed8a8d6b60fb151e675249e4eb83984c8300",
            "id": "IN-MAL-2026-014983",
            "import_time": "2026-08-05T14:19:49.257258354Z"
        }
    ]
}
References
Credits

Affected packages

npm / gs-uitk-testing-utils

Package

Name
gs-uitk-testing-utils
View open source insights on deps.dev
Purl
pkg:npm/gs-uitk-testing-utils

Affected ranges

Affected versions

9.*
9.9.11

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/gs-uitk-testing-utils/MAL-2026-12792.json"
indicators 
{
    "evidence_files": [
        {
            "path": "lib/core.js",
            "sha256": "397d1435e7291ed6b02b8627033a110124d250a54290b3a8f9f248573fd6a2d4",
            "tlsh": "38014929a393c08f97e096d0361a03d18499c380e7ce80a5fa7c4a87904e7d1cac5a96"
        },
        {
            "path": "lib/b02e30.js",
            "sha256": "3c8602d2046a6084ade4805b7b9a1e408de72dddf34e5cb592ad3b2c70c12baa",
            "tlsh": "ffe068073313c94fa1880bf77d0060a0aa0d8f58a16dc0daba28678601bf447d1c0232"
        },
        {
            "path": "package.json",
            "sha256": "74cffce7e9adf29dae95e834b3451961985e86b3d6fd0f8f6fde3f7101da64f2",
            "tlsh": "ef21a035ce254c232ec82964ac692a42f1a24c174d407c1937c7513c8faf16f11ff61d"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha1": "210b144754273b929951744bd803d77c67faf150",
                "sha512_sri": "sha512-u0ryGj5J3TxrY5xf6U6o89Fw+C7gZg/2nmgq1o4ESh0uvx2F3/IEFhVdGeQyreZ5OEjFwz5nC07IevoOgbLdZQ=="
            },
            "filename": "gs-uitk-testing-utils-9.9.11.tgz"
        }
    ]
}