MAL-2026-12875

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-atom-bnpl-feedback/MAL-2026-12875.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12875
Aliases
  • GHSA-23mh-5c53-jxhh
Published
2026-08-05T14:58:24Z
Modified
2026-08-06T01:20:18.455406338Z
Summary
Malicious code in bnpl-blocks-atom-bnpl-feedback (npm)
Details

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

Source: amazon-inspector (058b0a78e0960f56198334ba1623fa948a0b198e4480910e73e44e48ad2704d0)

On require('bnpl-blocks-atom-bnpl-feedback'), index.js loads bridge.js which selects a platform-specific asset, downloads an unsigned binary via HTTPS from string-split-obfuscated Cloudflare Workers subdomains (oob-worker.cf100-416.workers.dev, cf101-adf, cf102-baf, cf103-070.workers.dev) with a base64-over-DNS-TXT covert-channel fallback resolving under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru, writes it to /tmp or %TEMP% under disguised names (.cache<rnd> on Unix, dotnetdiag<rnd>.exe on Windows), chmods 0755, and spawns it detached via /bin/sh or cmd. The package's stated purpose is a 'data mapper' and index.js exports a trivial no-op class with no dependencies, contradicting the network-dropper behavior implemented in _bridge.js. Hostnames are reconstructed at runtime from split string arrays joined with empty separators to evade static matching.

Source: ghsa-malware (0800634f3b3a78b76ab883e20adb77b8fac5a440ece597adba71e3d1a1899a59)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "import_time": "2026-08-05T15:19:55.705090821Z",
            "sha256": "058b0a78e0960f56198334ba1623fa948a0b198e4480910e73e44e48ad2704d0",
            "id": "IN-MAL-2026-015517",
            "modified_time": "2026-08-05T14:58:24Z",
            "versions": [
                "35.7.5"
            ]
        },
        {
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "0800634f3b3a78b76ab883e20adb77b8fac5a440ece597adba71e3d1a1899a59",
            "id": "GHSA-23mh-5c53-jxhh",
            "import_time": "2026-08-06T00:58:53.250681247Z",
            "modified_time": "2026-08-05T20:08:29Z",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / bnpl-blocks-atom-bnpl-feedback

Package

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

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

35.*
35.7.5

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "bnpl-blocks-atom-bnpl-feedback-35.7.5.tgz",
            "hashes": {
                "sha512_sri": "sha512-got5OSqYQg2bP0yzh20gnzMWns8zx/OZ0uYNxkhwE4/JU9Nl02y8wrDMczFjWrmlMA+1R93tSkcd/UM36zsnDQ==",
                "sha1": "590d580d3704c3f2d8931c8761ad7c080a59af42"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "dea1856b16a670194bb0d7e5c6175416f65af6633380c6d4f75ca5880fb222483b2efc",
            "sha256": "995576d4fe999dad0436cdbd1891f90593dacf13471ca8a61a2a4aa1f817fda6",
            "path": "_bridge.js"
        },
        {
            "tlsh": "77c012228560723314b475946c65464636521f2e20345d4bb673601c809517605ed326",
            "sha256": "ddeb7cb4c9053c5ec669e567c77557b6a6dcd74ed97209f24c80281234278d0d",
            "path": "package.json"
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bnpl-blocks-atom-bnpl-feedback/MAL-2026-12875.json"