MAL-2026-12399

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/luluking3/MAL-2026-12399.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12399
Published
2026-08-05T13:02:19Z
Modified
2026-08-05T13:35:36.221379051Z
Summary
Malicious code in luluking3 (npm)
Details

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

Source: amazon-inspector (9a95cec14b778c5a61008305c1a4ee8155f777dbe02b6ae5cff25748584105ee)

On npm install, the package's postinstall hook runs index.js, which reconstructs a URL and shell command from String.fromCharCode char-code arrays (obfuscated behind _0x-prefixed variables), invokes curl -sL -o <hidden.cache path> to download https://aone-kit.oss-cn-beijing.aliyuncs.com/plugins/crypto.js, require()s the downloaded file inside the installer's Node process, and then unlinks it. The remote endpoint is a third-party Aliyun OSS bucket whose contents are mutable and controlled by the publisher, so arbitrary attacker-supplied JavaScript executes with the privileges of the user running npm install. Obfuscation of both the URL and the shell command indicates intent to evade static inspection.

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "0.0.1"
            ],
            "import_time": "2026-08-05T13:08:51.453346538Z",
            "sha256": "9a95cec14b778c5a61008305c1a4ee8155f777dbe02b6ae5cff25748584105ee",
            "id": "IN-MAL-2026-014858",
            "modified_time": "2026-08-05T13:02:19Z",
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / luluking3

Package

Name
luluking3
View open source insights on deps.dev
Purl
pkg:npm/luluking3

Affected ranges

Affected versions

0.*
0.0.1

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "luluking3-0.0.1.tgz",
            "hashes": {
                "sha512_sri": "sha512-oIc4hMphJe4+kY9NcoVR+zTfOGtQVPeerJu4ugaIvYnidv0+qpMUpnBBqrjGH0EN82OyHigr9EFWso9f1Xv55Q==",
                "sha1": "378e300d84aa177cbe1554d16cef9dde3651f063"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "5311909747e12b71bd6004df465fc402a4a7c5133250eae4faec8a5f9f9a824ed916b0",
            "sha256": "eef4d7a9a9cbfd3d9d6f807adefeaaf1934f09d10f264fafae586f7349524f7c",
            "path": "index.js"
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/luluking3/MAL-2026-12399.json"