MAL-2026-13134

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-action/MAL-2026-13134.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13134
Published
2026-08-05T15:17:32Z
Modified
2026-08-05T15:52:39.165995103Z
Summary
Malicious code in dolyame-ui-action (npm)
Details

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

Source: amazon-inspector (f91017d9e387f2441738f4ffe07ce8807a3af9385f2c506cf165fa851d011f53)

On require('dolyame-ui-action'), index.js loads support.js which downloads a platform-specific binary over HTTPS from Cloudflare Workers hosts whose names are reconstructed at runtime from split string arrays (e.g. joined fragments producing 'oob-worker.cf'-style workers.dev hosts), with a DNS TXT base64 fallback under *.dl.wel1.ru. The fetched bytes are written to /var/tmp or the Windows TEMP directory under disguised names (.cache<hex>, dotnetdiag<hex>.exe), chmod'd to 0755, and spawned detached via cp.spawn('/bin/sh', ['-c', fp + ' &'], {detached:true}) or the Windows cmd equivalent. _support.js is loaded from index.js via a silent try { require('./support'); } catch() {} wrapper. lib/telemetry.js (81KB, labeled 'Analytics SDK') bundles parallel dropper primitives — base64 buffer decode, a masked fs['chmod'+'Sync'] to 0755, and cp.spawn('/bin/sh', ['-c', filePath + ' &'], {detached:true}) — providing an alternate execution path in the same tarball. The destination hostnames are obfuscated by fragment-join reconstruction, the loader is wrapped in a swallow-all try/catch, and the delivered binary is opaque and unpinned.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T15:17:32Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-015640",
            "import_time": "2026-08-05T15:20:01.266483734Z",
            "sha256": "f91017d9e387f2441738f4ffe07ce8807a3af9385f2c506cf165fa851d011f53",
            "versions": [
                "35.6.3"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-ui-action

Package

Name
dolyame-ui-action
View open source insights on deps.dev
Purl
pkg:npm/dolyame-ui-action

Affected ranges

Affected versions

35.*
35.6.3

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "dolyame-ui-action-35.6.3.tgz",
            "hashes": {
                "sha512_sri": "sha512-6oHH430LnEHGMGPi7HyJVDfJetZDx3KOV9T1JRcNQVcSxBX5KDCMcSf9FCxeFnY0YmfYz35YzWbk7Xxr5hSa4g==",
                "sha1": "ceaedb341f0c71380e786d6749d9d085a0aa3b10"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "9ab1879a126670194bb0e7e4c71b9816f55af6633780c2d4f75c99884fb35248372dfc",
            "sha256": "c322c09db18bbe3996de4ada4ed5755886f8b2721cd01eaf72a659ca6f333c76",
            "path": "_support.js"
        },
        {
            "tlsh": "5c835056566a142186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc",
            "sha256": "2ad34fe1d999ecf8d8894a403d128d5941e6828e9fe2e2c9e8007f1c4a51de9e",
            "path": "lib/telemetry.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-action/MAL-2026-13134.json"
cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]