MAL-2026-13507

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-inputcolor/MAL-2026-13507.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13507
Published
2026-08-07T12:14:49Z
Modified
2026-08-07T12:35:12.992084128Z
Summary
Malicious code in dolyame-ui-inputcolor (npm)
Details

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

Source: amazon-inspector (abd621d8f38bf9cc61f7de47b10d8ef68fe086c42508366989552992e0bb8238)

index.js unconditionally requires./loader on load. loader.js assembles attacker hostnames at runtime via array.join to hide them from static scanners (e.g., ["oob-w","orker",".cf","101-adf.workers.","de","v"].join("")), selects an OS-specific endpoint, and fetches a binary payload over HTTPS from one of four oob-worker.cf10[0-3]-*.workers.dev hosts. On HTTPS failure, it falls back to a DNS-TXT covert channel: it queries chunked TXT records under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru, base64-concatenates the chunks, and reconstitutes the payload buffer. The bytes are written to /tmp or %TEMP% under a disguised name (.cache<hex> on Unix, dotnetdiag<hex>.exe on Windows), chmodded to 0755, and spawned detached via /bin/sh -c or cmd. Module names, API names, and hostnames are reconstructed via string concatenation and dynamic property access (require("child" + "process"), fs["chmod" + "Sync"], os["host" + "name"]) to defeat plain-text matching. The dropper fires on every require() of this package, granting the operator of those hosts arbitrary code execution on any machine that installs or imports it.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-016899",
            "modified_time": "2026-08-07T12:14:49Z",
            "import_time": "2026-08-07T12:23:26.34241259Z",
            "source": "amazon-inspector",
            "sha256": "abd621d8f38bf9cc61f7de47b10d8ef68fe086c42508366989552992e0bb8238",
            "versions": [
                "35.8.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-ui-inputcolor

Package

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

Affected ranges

Affected versions

35.*
35.8.1

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "package_integrity": [
        {
            "filename": "dolyame-ui-inputcolor-35.8.1.tgz",
            "hashes": {
                "sha512_sri": "sha512-/kCr4UTB1nTjhZp0/SMnJgsAOMEWm9KSUy5qwLJUM9B4AySBnIFjqzY9QsFTFs6321NfdnXuyUU1k1OL+3zhZA==",
                "sha1": "0888bfeb35292574a2712b7233226c92f188d70c"
            }
        }
    ],
    "evidence_files": [
        {
            "path": "_loader.js",
            "tlsh": "8da1a5551afa70180692e2d4c81f8826b19ef5533784e5d4fb4c6a988fd752883b29ec",
            "sha256": "d501c2c8b36f18b89460df9732aa93dc34533cf0f96e48e3b05637867c3ca38b"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-inputcolor/MAL-2026-13507.json"