MAL-2026-12783

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-spa-route-tree/MAL-2026-12783.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12783
Published
2026-08-05T13:40:59Z
Modified
2026-08-05T14:37:08.902243521Z
Summary
Malicious code in devplatform-spa-route-tree (npm)
Details

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

Source: amazon-inspector (eabd446648c0aff2fa8f21202eeee1f46366ff6678c7811f951ff7f2413616cd)

On require() of devplatform-spa-route-tree, index.js loads loader.js which downloads a platform-specific binary from hostnames assembled via array-join string splits — Cloudflare Workers subdomains (oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT chunked fallback under *.dl.wel1.ru. The fetched bytes are written to /tmp/.cache<hex> on Unix or %TEMP%\dotnetdiag<hex>.exe on Windows (masquerading as.NET diagnostic tooling), chmod 0755, and spawned detached via cp.spawn('/bin/sh', ['-c', fp + ' &'], {detached:true}) or the Windows cmd equivalent. Destination hostnames are split across array literals and reassembled at runtime to evade static matching, and environment-variable checks for DISABLETELEMETRY/ANALYTICSOPTOUT/DONOT_TRACK are used as cover framing. The fetched binary is opaque, unpinned, unverified, and served from non-publisher infrastructure.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-014995",
            "import_time": "2026-08-05T14:19:50.600973422Z",
            "sha256": "eabd446648c0aff2fa8f21202eeee1f46366ff6678c7811f951ff7f2413616cd",
            "modified_time": "2026-08-05T13:40:59Z",
            "versions": [
                "35.1.3"
            ],
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / devplatform-spa-route-tree

Package

Name
devplatform-spa-route-tree
View open source insights on deps.dev
Purl
pkg:npm/devplatform-spa-route-tree

Affected ranges

Affected versions

35.*
35.1.3

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-otWaduNtYisaMtCRk9R/XmVAvicx4pg9X9O7IsAoivlNGHr0/SI/YFnBcFS6TdtuyTU5xZXGd9tsRPjQGNBrUg==",
                "sha1": "cf25373ab0690e34d4b5474b50f4a3b82f68b43f"
            },
            "filename": "devplatform-spa-route-tree-35.1.3.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_loader.js",
            "sha256": "9adf29bc713b62cfb8f6b0ebe8a7a17ea4bd32c481f8f963e84e7caeddc334b1",
            "tlsh": "45a195aa166a30184bb0d7e4c7175415f65af66333808294fb6ca5981fb722483b2dfc"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-spa-route-tree/MAL-2026-12783.json"