MAL-2026-12679

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/delivery-ci-quality/MAL-2026-12679.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12679
Published
2026-08-05T13:54:57Z
Modified
2026-08-05T14:36:22.531437514Z
Summary
Malicious code in delivery-ci-quality (npm)
Details

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

Source: amazon-inspector (82a7deac8b6933e5d38da84c365f65ac4fbcf7b3a26825914d19ca7aeafcf516)

On require() of the package, index.js unconditionally loads compat.js, which downloads a platform-specific binary from hardcoded Cloudflare Workers endpoints (oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT base64 fallback channel over *.dl.wel1.ru. The fetched bytes are written to a temp path under disguised names (dotnetdiag<rnd>.exe,.cache<rnd>,.analytics_state), chmod 0o755, and launched via spawn('/bin/sh','-c',...) or spawn('cmd','/c','start',...) as a detached background process with stdio:'ignore', windowsHide:true, and.unref(). C2 hostnames are reconstructed at runtime via.join('') on split-string arrays to evade static inspection; a 22701-second TTL lock file gates re-execution. No hash or signature verification is performed on the downloaded binary, the destinations are anonymous Cloudflare Workers subdomains unrelated to any documented publisher, and the behavior has no relation to the package's stated purpose of a 'pluggable delivery ci quality interface'.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "modified_time": "2026-08-05T13:54:57Z",
            "id": "IN-MAL-2026-015091",
            "import_time": "2026-08-05T14:20:01.010120552Z",
            "sha256": "82a7deac8b6933e5d38da84c365f65ac4fbcf7b3a26825914d19ca7aeafcf516",
            "versions": [
                "35.6.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / delivery-ci-quality

Package

Name
delivery-ci-quality
View open source insights on deps.dev
Purl
pkg:npm/delivery-ci-quality

Affected ranges

Affected versions

35.*
35.6.2

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "delivery-ci-quality-35.6.2.tgz",
            "hashes": {
                "sha512_sri": "sha512-OsJ553iQAqudww9eh/Hgrd6IkflTCbRvk8QQubnePQPKlEhjrVes4ETBdRRnm9mx483ZiwocNCxXkcHdUx8Aqw==",
                "sha1": "01295b20304661827df7eaad48451ce12f89f5c1"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "20a1845a16a670088bb0ebe487175416f65ef6633780c2d4fb5ca5885fb312483b1efc",
            "sha256": "ec9c8d8d8ae2315561aa34877a746bbdfbc9b412cafcb8938db67e5c991b6dcf",
            "path": "_compat.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/delivery-ci-quality/MAL-2026-12679.json"
cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]