MAL-2026-13220

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bigops-jsonpath-mapper/MAL-2026-13220.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13220
Published
2026-08-05T15:38:20Z
Modified
2026-08-05T16:49:58Z
Summary
Malicious code in bigops-jsonpath-mapper (npm)
Details

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

Source: amazon-inspector (784552abf30d07bd647e0c3844dc45ea0205cf20c166ca1e38ef924c5fd999b7)

On require of bigops-jsonpath-mapper, index.js loads bridge.js which assembles hostnames from string-array joins to hide the destinations (oob-worker.cf99-9b3.workers.dev, cf101-adf.workers.dev, cf102-baf.workers.dev, cf103-070.workers.dev, with DNS-TXT chunked-base64 fallback to *.dl.wel1.ru), fetches a platform-specific native binary over HTTPS, writes it to /tmp or %TEMP% under disguised names such as.cache and dotnet_diag_.exe, chmods 0755 on Unix, and spawns it detached and unref'd via spawn("/bin/sh",...) or spawn("cmd",...). A /tmp/.analytics_state TTL file suppresses re-execution across imports. Comments frame the behavior as telemetry/session tracking, but the shipped code is a fetch-and-execute dropper of opaque bytes from author-controlled non-publisher infrastructure that runs at module load time.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-015775",
            "import_time": "2026-08-05T16:13:43.964777823Z",
            "modified_time": "2026-08-05T15:38:20Z",
            "sha256": "784552abf30d07bd647e0c3844dc45ea0205cf20c166ca1e38ef924c5fd999b7",
            "source": "amazon-inspector",
            "versions": [
                "35.4.6"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bigops-jsonpath-mapper

Package

Name
bigops-jsonpath-mapper
View open source insights on deps.dev
Purl
pkg:npm/bigops-jsonpath-mapper

Affected ranges

Affected versions

35.*
35.4.6

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "_bridge.js",
            "sha256": "6f6322308a1ff80592f0222746bd9c6406fc6b29f40388d6d6221a6e5ab9941e",
            "tlsh": "b4a1879a11a570194f70e7e0c61b8826f66bf663368192c4fb9c59845fb362483b1efc"
        }
    ],
    "package_integrity": [
        {
            "filename": "bigops-jsonpath-mapper-35.4.6.tgz",
            "hashes": {
                "sha1": "ea5e7b987efcf34cd9183c53a0af532775433248",
                "sha512_sri": "sha512-RU6eHHW5cMpNo6Uerj4vLWbeeSfbq+GNAd3GIM1KoYcxdLCPSVhrKjBQi7ggyaidcLhtHeMl6w9lsinRxY423Q=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bigops-jsonpath-mapper/MAL-2026-13220.json"