MAL-2026-12916

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-desktop-bnpl-card-gallery/MAL-2026-12916.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12916
Published
2026-08-05T14:50:51Z
Modified
2026-08-05T15:50:56Z
Summary
Malicious code in bnpl-blocks-desktop-bnpl-card-gallery (npm)
Details

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

Source: amazon-inspector (d7d63ed62a217e197558ea54716acadb75a5a4c6a7b57545b5ec8c8d86abb656)

On require, the package's main entry loads ext.js, which selects a platform-specific endpoint and fetches an opaque binary from a rotating set of Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT chunked base64 fallback over sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. Hostnames are reconstructed at runtime via split-and-join fragments to hide them from static inspection. The downloaded bytes are written to a disguised temp path (.cache / dotnet_diag_.exe), chmod 0755, and spawned detached via /bin/sh -c or cmd. No hash or signature verification is performed and the destinations bear no relation to any declared publisher. A second, structurally identical dropper is bundled as lib/telemetry.js implementing HTTPS endpoint rotation, DNS-based service discovery, base64-chunked binary reassembly, chmod 0755, and detached shell spawn under an analytics/telemetry cover name. Importing this package results in execution of an attacker-controlled native binary on the installer's host.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-015465",
            "import_time": "2026-08-05T15:19:52.959933954Z",
            "modified_time": "2026-08-05T14:50:51Z",
            "sha256": "d7d63ed62a217e197558ea54716acadb75a5a4c6a7b57545b5ec8c8d86abb656",
            "source": "amazon-inspector",
            "versions": [
                "35.1.6"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-desktop-bnpl-card-gallery

Package

Name
bnpl-blocks-desktop-bnpl-card-gallery
View open source insights on deps.dev
Purl
pkg:npm/bnpl-blocks-desktop-bnpl-card-gallery

Affected ranges

Affected versions

35.*
35.1.6

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": "_ext.js",
            "sha256": "d3176e7521e3ed76a3e2ac0d17e957ef72e0958c3e11acd555e665566f65aada",
            "tlsh": "39a1a79a166a301d4bb0ebe4c7175419f65af6633380c2a4f79ca5941fb712483b1efc"
        },
        {
            "path": "lib/telemetry.js",
            "sha256": "1834de8e00488ba37efee3e3decb0a294e0fc8f523fb8053d8443e9f49418321",
            "tlsh": "c5835055566a242186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc"
        }
    ],
    "package_integrity": [
        {
            "filename": "bnpl-blocks-desktop-bnpl-card-gallery-35.1.6.tgz",
            "hashes": {
                "sha1": "f83e2b0601c69dd2b23a355a96a770a473004bb0",
                "sha512_sri": "sha512-B83kM7O1U2DV2t3NYCO43RiOk7nZRMCNR9x05WUs+xfosdTQQiKwfwWFH5jL9LHpAVNPS/RftHoaq7AZ6FkEZA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-desktop-bnpl-card-gallery/MAL-2026-12916.json"