MAL-2026-13569

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-flatcorners/MAL-2026-13569.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13569
Published
2026-08-07T12:29:35Z
Modified
2026-08-07T13:20:37.034158266Z
Summary
Malicious code in dolyame-ui-flatcorners (npm)
Details

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

Source: amazon-inspector (9ae65f4eadd80905a644647c6f15aee082d428bf5812632a29015eccc924bf1b)

On require()/import of the package, both adapter.js and the advertised main module lib/telemetry.js download an OS-specific binary from obfuscated third-party endpoints (Cloudflare Workers subdomains oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, with a DNS-TXT chunked fallback via sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), write it to /var/tmp/.cache<hex> or %TEMP%\dotnetdiag<hex>.exe, mark it executable via fs'chmod'+'Sync', and spawn it detached via cp.spawn('/bin/sh', ['-c', filePath + ' &'], {detached:true, stdio:'ignore'}) or cmd equivalent. Hostnames, filesystem API names, and the child_process require string are reassembled at runtime through string concatenation and.join('') to evade static detection. The dropper is duplicated across _adapter.js and lib/telemetry.js so execution occurs even if one path fails. The fetched payload is opaque, unpinned, unverified, and unrelated to the package's stated purpose (Common TypeScript definitions).

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "9ae65f4eadd80905a644647c6f15aee082d428bf5812632a29015eccc924bf1b",
            "source": "amazon-inspector",
            "versions": [
                "35.8.1"
            ],
            "import_time": "2026-08-07T12:51:21.7689742Z",
            "modified_time": "2026-08-07T12:29:35Z",
            "id": "IN-MAL-2026-017003"
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-ui-flatcorners

Package

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

Affected ranges

Affected versions

35.*
35.8.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-flatcorners/MAL-2026-13569.json"
indicators 
{
    "evidence_files": [
        {
            "tlsh": "5ea1b65a16fb30280693f1d4891f8816719af64337c4e9c4fb4c66548fea52883b39fc",
            "sha256": "6eeb87029df11bc3956f9a361bb918326cb295a17db8f902073b5083e1574601",
            "path": "_adapter.js"
        },
        {
            "tlsh": "4573304966fb10214263b0685ebb40437635c4072a4eed5dba9c43ec9f8db3896f1fb9",
            "sha256": "34c10b27eafcca6f083e88710afcb594ecd89a6be09fef38918957921eace9ee",
            "path": "lib/telemetry.js"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha1": "08db62b93eb7d07d191e29d38f60a7e0a97fe3e7",
                "sha512_sri": "sha512-wdNHasd6Y1pdWsugJBJWwONqj5Wy3qa1eEqMLDZ/vw3QYqVzViQauYXUkk/Ou3BxtKG7q8HG484kv/jBZ8ftSg=="
            },
            "filename": "dolyame-ui-flatcorners-35.8.1.tgz"
        }
    ]
}