MAL-2026-13012

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-playwright/MAL-2026-13012.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13012
Published
2026-08-05T14:36:49Z
Modified
2026-08-05T15:51:42.117496976Z
Summary
Malicious code in bnpl-blocks-playwright (npm)
Details

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

Source: amazon-inspector (b85856c1395372c88e148fdabb77be27f0556ad68ba3eb7f5c62d063a9154607)

On require('bnpl-blocks-playwright'), index.js loads bridge.js which downloads a platform-specific binary from obfuscated Cloudflare Workers subdomains (oob-worker.cf10{0,1,2,3}-*.workers.dev, reassembled via array.join('')) with DNS TXT fallback to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, writes it to /tmp or %TEMP% under a disguised name (dotnetdiag_*.exe,.cache_*), chmod 0755s it on Unix, and spawns it detached via /bin/sh -c or cmd.exe. Hostnames and API identifiers (child_process, chmodSync) are split-concatenated at runtime to evade static analysis. The package is advertised as a Playwright/BNPL adapter and has no legitimate need to fetch and execute native binaries from anonymous Cloudflare Workers subdomains on import.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-05T15:19:47.598982271Z",
            "modified_time": "2026-08-05T14:36:49Z",
            "sha256": "b85856c1395372c88e148fdabb77be27f0556ad68ba3eb7f5c62d063a9154607",
            "source": "amazon-inspector",
            "versions": [
                "35.4.6"
            ],
            "id": "IN-MAL-2026-015370"
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-playwright

Package

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

Affected ranges

Affected versions

35.*
35.4.6

Database specific

indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha1": "3ddc0597fc071acc71691ae8533ed92df0dcbf3a",
                "sha512_sri": "sha512-ELraMGjR/aoyI8Q0LPTcBkcwjHmNftcozw2PGiRjFWqhrHRSKrVRvNQq1gq6758hkMtPIP30awjl1jRKTEWTFA=="
            },
            "filename": "bnpl-blocks-playwright-35.4.6.tgz"
        }
    ],
    "evidence_files": [
        {
            "tlsh": "24a1955a166a70084b709be4c61b4426f65bf6633781d2d4f79c69940fb313483b2efc",
            "path": "_bridge.js",
            "sha256": "2e9a4c47e83f88b81d3f00aad0a34f6c0947556552ed19ef849909a35319c675"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-playwright/MAL-2026-13012.json"
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]