MAL-2026-11142

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Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/node-array-plus/MAL-2026-11142.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-11142

Published

2026-07-28T13:35:08Z

Modified

2026-08-05T13:35:38Z

Summary

Malicious code in node-array-plus (npm)

Details

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

Source: amazon-inspector (e1ce58719e0587902be3a6436f329ce631317fe3a7c322d89f9c679cd6e1a744)

index.js is heavily obfuscated with a 312-entry rotated string array plus RC4/base64 decoders that hide identifiers and literals. On require(), the module builds a hardcoded IPv4 endpoint by concatenating four numeric octets, performs an HTTP GET against that endpoint, AES-256-CBC-decrypts the response using an MD5-derived key with an IV taken from the response, writes the plaintext to a file under os.homedir(), and executes it via child_process with windowsHide:true and cwd=os.homedir(). The package exposes no legitimate API surface (empty description, no exported functionality) — its sole effect on import is to drop and run remote code on the installer's machine. Obfuscation is used specifically to conceal the destination and the decrypt-drop-exec chain.

Database specific

{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-010911",
            "import_time":  "2026-07-28T14:19:58.668779055Z",
            "modified_time":  "2026-07-28T13:35:08Z",
            "sha256":  "e1ce58719e0587902be3a6436f329ce631317fe3a7c322d89f9c679cd6e1a744",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.9"
            ]
        },
        {
            "id":  "IN-MAL-2026-014870",
            "import_time":  "2026-08-05T13:08:52.134240732Z",
            "modified_time":  "2026-08-05T13:04:13Z",
            "sha256":  "40b0c2825705c60185bb3391c58ace7356e4f363483574bca9eb5d6e7c3a0f52",
            "source":  "amazon-inspector",
            "versions":  [
                "1.1.9"
            ]
        }
    ]
}

References

Credits

- Amazon Inspector - FINDER
- - inspector-research@amazon.com

Affected packages

npm / node-array-plus

Package

Name: node-array-plus; View open source insights on deps.dev
Purl: pkg:npm/node-array-plus

Affected ranges

Affected versions

1.*

1.0.9

1.1.9

Database specific

cwes

[
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    },
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    }
]

indicators

{
    "evidence_files":  [
        {
            "path":  "index.js",
            "sha256":  "3a96c07468a2adea3fab5cdfdee801fdb557382a128b0e62b34f013400e5266d",
            "tlsh":  "ceb2868d3fd2f0a04237b0f76a1b6895e13aac9cb2cc9409f7a5f058fd58354d165b68"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "node-array-plus-1.0.9.tgz",
            "hashes":  {
                "sha1":  "3467db23d2740ff19ceb01119d8b1a27d06c4207",
                "sha512_sri":  "sha512-XfF3tmRR9XzvQhEiUqlOeOfmO0q1nDWz+ZGopqmFf+aKt+UNgXyUgpo9UAGUaiEOshYJMWQj74I6n1u/s03+5A=="
            }
        }
    ]
}

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/node-array-plus/MAL-2026-11142.json"