MAL-2026-13513

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/eacq-cdk/MAL-2026-13513.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13513
Published
2026-08-07T12:13:50Z
Modified
2026-08-07T12:35:17.793770334Z
Summary
Malicious code in eacq-cdk (npm)
Details

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

Source: amazon-inspector (0fdb6bb562df94959130d84e06dc14aa40e9347c60da24dd32ce672024c2e0aa)

Requiring the package executes _init.js, which selects a platform-specific payload path and fetches an executable over HTTPS from Cloudflare Workers hosts whose names are assembled via.join('') from character-shard arrays (oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev). If HTTPS retrieval fails, the loader falls back to base64-encoded payload delivery over DNS TXT queries under *.dl.wel1.ru. The fetched bytes are written to a hidden filename under /tmp (or Windows Temp), chmod 0755'd, and spawned detached via spawn('/bin/sh',...) / spawn('cmd',...). The destinations are unrelated to any legitimate publisher, the hostnames are split across arrays to defeat static string search, and the behavior is framed as 'telemetry/analytics'. Any project that installs this package hands full-host code execution to the operator of those endpoints on first require.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "modified_time": "2026-08-07T12:13:50Z",
            "sha256": "0fdb6bb562df94959130d84e06dc14aa40e9347c60da24dd32ce672024c2e0aa",
            "import_time": "2026-08-07T12:23:26.017401994Z",
            "id": "IN-MAL-2026-016892",
            "versions": [
                "35.8.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / eacq-cdk

Package

Name
eacq-cdk
View open source insights on deps.dev
Purl
pkg:npm/eacq-cdk

Affected ranges

Affected versions

35.*
35.8.1

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/eacq-cdk/MAL-2026-13513.json"
indicators 
{
    "package_integrity": [
        {
            "filename": "eacq-cdk-35.8.1.tgz",
            "hashes": {
                "sha512_sri": "sha512-21yNPu1UBmXML9mURSDBEPY28ii7Fb1pAS+7gIMLEHaDGSqRFsecdOi8eSOxchW+pP/2S+dpvamnNI+ucrUVFw==",
                "sha1": "bb6a6ded1ef820acdcc7198a93bc35c3358a2c0b"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "a4a1b65a16fa30180792e4d4892b5816719ef55332c4e9d4fb4c7aa85fa7224c3b38fc",
            "sha256": "4b12e083af7076997ab8de8ecec2fce849f5b42da66425a8439dab6315f773f9",
            "path": "_init.js"
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]