MAL-2026-13496

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ded-pwa-c-cms/MAL-2026-13496.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13496
Published
2026-08-07T12:12:54Z
Modified
2026-08-07T12:35:27.728067184Z
Summary
Malicious code in ded-pwa-c-cms (npm)
Details

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

Source: amazon-inspector (49417f27ca8728639dfd54e327ed26072b72fe73db14973ae1b39fb55c8ff52b)

On require('ded-pwa-c-cms'), index.js loads platform.js which selects a platform-specific URL path and downloads an opaque binary over HTTPS from obfuscated author-controlled hosts (Cloudflare Workers subdomains such as oob-worker.cf*-*.workers.dev and *.dl.wel1.ru subdomains including sdk/ext/pkg/net), with a DNS-TXT chunked base64 fallback channel (count read from c.<domain>, chunks read from i.<domain>). The fetched bytes are written to /tmp/.cache<hex> on Unix or %TEMP%\dotnetdiag<hex>.exe on Windows, chmod 0755, and spawned detached via cp.spawn('/bin/sh', ['-c', fp + ' &'], {detached:true}).unref() (or the cmd equivalent). C2 hostnames are reassembled at runtime from split-string arrays joined with.join(''), and execution is gated behind DISABLETELEMETRY / ANALYTICSOPTOUT / DONOTTRACK env checks as a telemetry cover story. The package advertises itself as a pluggable CMS interface with no dependencies and no legitimate need for a native binary; the dotnetdiag filename masquerades as a Microsoft diagnostic tool. No hash/signature verification is performed on the fetched payload.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-016886",
            "import_time": "2026-08-07T12:23:25.748687606Z",
            "sha256": "49417f27ca8728639dfd54e327ed26072b72fe73db14973ae1b39fb55c8ff52b",
            "modified_time": "2026-08-07T12:12:54Z",
            "versions": [
                "35.9.9"
            ],
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / ded-pwa-c-cms

Package

Name
ded-pwa-c-cms
View open source insights on deps.dev
Purl
pkg:npm/ded-pwa-c-cms

Affected ranges

Affected versions

35.*
35.9.9

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-epLAMxUK9eD1aoxpZ5IdOaQyL+/wL6EwAiQu0J7GVLrb0vi3T6lzkXnNChRxT8EGR+hhCay5HobkHn/2Dysz6Q==",
                "sha1": "6de617c6a58bab1a66ebe32613c1b4a2958695d0"
            },
            "filename": "ded-pwa-c-cms-35.9.9.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_platform.js",
            "sha256": "938bed9ce74ce9c7d5a0429a10db5780eaf59a8b1ec91454339cfb4fab636980",
            "tlsh": "bda1b65a026630198bb0d7e4c7175416f65be6633380c294fbaca5885fb716483b2efc"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ded-pwa-c-cms/MAL-2026-13496.json"