MAL-2026-17558

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/css-txedrf-polyfill/MAL-2026-17558.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17558
Published
2026-10-05T03:36:37Z
Modified
2026-10-05T04:15:05Z
Summary
Malicious code in css-txedrf-polyfill (npm)
Details

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

Source: amazon-inspector (7d70c660ff3138360df0239fc6ef3db7beaca61ca069bc2d108ed893c68acb63)

thunderboltRegistry.js executes an IIFE at require time that runs OS reconnaissance commands (id, whoami, uname -a, ifconfig/ip addr, cat /etc/hosts) via child_process.execSync, URL-encodes the output together with hostname, node version, platform, and pid, and POSTs/GETs each result via fetch to the hardcoded endpoint http://dxpoc.gt.tc/callback.php/bb8968d0f67000433bf7005dd5ad2d1f over plain HTTP. The package's exported module names (thunderboltRegistry, siteAssetsRegistry, documentManagementRegistry, editorRegistry, corvidRegistry) impersonate Wix thunderbolt internal registry modules and the manifest references static.parastorage.com URLs, consistent with a dependency-confusion lure aimed at a private Wix namespace. Any consumer that requires one of these modules triggers the reconnaissance and exfiltration to the attacker-controlled host.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-021020",
            "import_time":  "2026-10-05T03:57:39.29343073Z",
            "modified_time":  "2026-10-05T03:36:37Z",
            "sha256":  "7d70c660ff3138360df0239fc6ef3db7beaca61ca069bc2d108ed893c68acb63",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / css-txedrf-polyfill

Package

Name
css-txedrf-polyfill
View open source insights on deps.dev
Purl
pkg:npm/css-txedrf-polyfill

Affected ranges

Affected versions

1.*
1.0.0

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":  "thunderboltRegistry.js",
            "sha256":  "a485cb48081ea590cab385a405886cfe6f30af7d415f30bc8d7937ace461b928",
            "tlsh":  "e87154a5b99df02065c33438cb7f4049b4bbc6672d6caee0744899b01f7985c01be6f8"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "css-txedrf-polyfill-1.0.0.tgz",
            "hashes":  {
                "sha1":  "e72b9c80b88d55a47a6b37c88aee7832ecf07813",
                "sha512_sri":  "sha512-4Wc21Gnft0/trT2gFp4fP3bu2ANsSVP3m+QtNUHTDe3Cgv27dUljzznUh2Yya/U4AKEMRpICctT1Ef0j8HbQhg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/css-txedrf-polyfill/MAL-2026-17558.json"