MAL-2026-13784

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Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bgncvhferucfds/MAL-2026-13784.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-13784

Aliases

GHSA-p783-m8pp-74w8

Published

2026-08-12T10:29:53Z

Modified

2026-08-12T13:00:18.850536443Z

Summary

Malicious code in bgncvhferucfds (npm)

Details

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

Source: amazon-inspector (c1bf8639ccc5d2a70ae2e0ce754b76e1ca525699413f5d696289714005e86c57)

The package's sole content is a single obfuscated HTML file declared as main. When loaded in a browser, the page renders a fake Cloudflare Turnstile 'Just a moment...' verification screen, reconstructs a URL from string fragments that resolves to login.microsoft.com, and redirects the browser to that URL carrying the current page's query parameters. There are no lifecycle scripts, no JavaScript entry point, and the HTML is not executed by npm install or require(), so a developer installing the package is not directly attacked. The package abuses the npm registry (and its public CDN mirrors such as unpkg/jsDelivr) as free hosting for a Microsoft-credential phishing lure, using the Cloudflare-challenge cover story to bounce victims into an attacker-parameterized Microsoft login flow.

Source: ghsa-malware (af08b658efd69810d2d9c7b0109dd6e5d00640abf1501a237c8c5cc0fa4d880f)

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": [
        {
            "import_time": "2026-08-12T10:39:02.421285136Z",
            "sha256": "af08b658efd69810d2d9c7b0109dd6e5d00640abf1501a237c8c5cc0fa4d880f",
            "modified_time": "2026-08-12T10:29:54Z",
            "source": "ghsa-malware",
            "id": "GHSA-p783-m8pp-74w8",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ]
        },
        {
            "import_time": "2026-08-12T12:51:45.337236638Z",
            "sha256": "1eb215bc2902dfd37037e60905405a669f28ca8f7d8a45bc1f079cef4a610dd2",
            "modified_time": "2026-08-12T12:28:29Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-017486",
            "versions": [
                "1.0.0"
            ]
        },
        {
            "import_time": "2026-08-12T12:51:45.05914886Z",
            "sha256": "c1bf8639ccc5d2a70ae2e0ce754b76e1ca525699413f5d696289714005e86c57",
            "modified_time": "2026-08-12T12:27:54Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-017482",
            "versions": [
                "1.0.1"
            ]
        }
    ]
}

References

Credits

- Amazon Inspector - FINDER
- - inspector-research@amazon.com

Affected packages

npm / bgncvhferucfds

Package

Name: bgncvhferucfds; View open source insights on deps.dev
Purl: pkg:npm/bgncvhferucfds

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.0.0

1.0.1

Database specific

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bgncvhferucfds/MAL-2026-13784.json"

indicators

{
    "evidence_files": [
        {
            "sha256": "c4788337e98a72cbf4efe4be8c5fa02df3371af154a4dcd32366666b0d6c2921",
            "path": "index.html",
            "tlsh": "29c2855163c72840220bab6a371ab7d4ed1cd59b3729445bf50c3e4aefaab13c5d0eb4"
        }
    ]
}

cwes

[
    {
        "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",
        "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."
    }
]