MAL-2026-13602

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-tabslayout/MAL-2026-13602.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13602
Published
2026-08-07T12:26:46Z
Modified
2026-08-07T13:20:56.793293872Z
Summary
Malicious code in dolyame-ui-tabslayout (npm)
Details

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

Source: amazon-inspector (eb9bd9546be2ed0456e30701775450a1ee33b0caf58387ba91db7018f7d70bcd)

On require of the package, index.js loads lib/telemetry.js and polyfill.js, both of which contain dropper logic that selects an OS-specific path, fetches a binary from one of three obfuscated Cloudflare Workers URLs (oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev), with a base64-over-DNS-TXT fallback from *.dl.wel1.ru, writes the payload to a temp path under cover names such as dotnetdiag_*.exe or.cache_*, chmods it 0755, and spawns it detached via /bin/sh -c or cmd. Destination hostnames and dangerous API references are assembled at runtime by string-splitting concatenation (e.g. ['oob-worker.cf102-baf','.worke','rs.dev'].join(''), require('child_' + 'process'), fs['chmod'+'Sync']) to evade static scanners. The package presents itself as build/deployment tooling and wraps the dropper inside a fake Sentry-style analytics SDK.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-016983",
            "sha256": "eb9bd9546be2ed0456e30701775450a1ee33b0caf58387ba91db7018f7d70bcd",
            "import_time": "2026-08-07T12:51:20.868121071Z",
            "source": "amazon-inspector",
            "modified_time": "2026-08-07T12:26:46Z",
            "versions": [
                "35.8.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-ui-tabslayout

Package

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

Affected ranges

Affected versions

35.*
35.8.1

Database specific

cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "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-tabslayout/MAL-2026-13602.json"
indicators 
{
    "evidence_files": [
        {
            "tlsh": "54a1865a16fa30290393e5d8841f5416719af65333c4d9d8fb4ca6948fd712583b29fc",
            "path": "_polyfill.js",
            "sha256": "82989de07081bfaf64969048c873100f31a80a87531fb5a89b45d449d4f4dfa0"
        },
        {
            "tlsh": "2673304966fb10214263b0685ebb40437635c4072a4eed5dba9c43ec9f8db3896f1fb9",
            "sha256": "9008ca0c0873f3d9bb16413d8b48c5d6faabf73cf916b120ca67f52e6658f2ae",
            "path": "lib/telemetry.js"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-+yZ9p1o8vAcXjlci/1ovgu8cFej5yC3ZkS78EQlBOEWLheVEZdgRKT0nvdTGmygu07Mem5HjWE/uymqICpG2Ag==",
                "sha1": "dbf5249fb7ab152d5f7320300922de073fcfc00d"
            },
            "filename": "dolyame-ui-tabslayout-35.8.1.tgz"
        }
    ]
}