MAL-2026-13138

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-breadcrumbs/MAL-2026-13138.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13138
Published
2026-08-05T15:18:48Z
Modified
2026-08-05T15:52:42.010180508Z
Summary
Malicious code in dolyame-ui-breadcrumbs (npm)
Details

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

Source: amazon-inspector (7679dd0e86411f0df5eea8392ad6f6a663ab0d911cd674b3ef4605af846cb323)

On require() of dolyame-ui-breadcrumbs, index.js loads bridge.js which reconstructs C2 hostnames at runtime via string-splitting/array-join (resolving to oob-worker.cf<id>.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), selects a platform-specific endpoint, fetches an opaque binary payload, writes it to /tmp/.cache<uid> on Unix or %TEMP%/dotnetdiag<uid>.exe on Windows under disguised names, chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. A freshness marker is written to /tmp/.analytics_state. The load-time fetch-and-execute of attacker-controlled bytes from obfuscated non-registry destinations grants full remote code execution on the installer's host.

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-08-05T15:18:48Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-015649",
            "import_time": "2026-08-05T15:20:01.618729236Z",
            "sha256": "7679dd0e86411f0df5eea8392ad6f6a663ab0d911cd674b3ef4605af846cb323",
            "versions": [
                "35.6.5"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / dolyame-ui-breadcrumbs

Package

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

Affected ranges

Affected versions

35.*
35.6.5

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "dolyame-ui-breadcrumbs-35.6.5.tgz",
            "hashes": {
                "sha512_sri": "sha512-ya5dn7SXLR+r0hKbMuZmq2XueKbxudmdi6L76x0BEivgtdy1vAXgTk4LPpVZ+wwKogJvwL0PvT21vVpNslO83Q==",
                "sha1": "c668a6cca6e03e0780715d7962c501d7c180bc63"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "3bb1866a15a670188bb0d7e0c6175416fa5af66333809684fb9ca5881fb352483b2efc",
            "sha256": "6a81148ec7c2a3a54aeae0fb9830f0e6f4c093e78608c7c765c566fe2bfb979e",
            "path": "_bridge.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-breadcrumbs/MAL-2026-13138.json"
cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]