MAL-2026-13799

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/cvmbxcjiasdg/MAL-2026-13799.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13799
Aliases
  • GHSA-cvfr-666p-q22g
Published
2026-08-12T10:29:53Z
Modified
2026-08-12T13:00:17.509273755Z
Summary
Malicious code in cvmbxcjiasdg (npm)
Details

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

Source: amazon-inspector (925628ce795fdbf222c292ae4ccfbe710eda2fa1b6fd521db3379f9569e16f9b)

The package contains a single index.html file declared as main and no JavaScript entry point, lifecycle scripts (preinstall/install/postinstall/prepare), or library exports. The HTML mimics a Cloudflare 'Just a moment...' Turnstile challenge and embeds obfuscator.io-style JavaScript with a custom base64 string array. When the fake challenge completes, decoded strings are used to construct a URL via new URL(...), the current page's query parameters are forwarded via URLSearchParams(window.location.search).forEach(...targetUrl.searchParams.append...), and the browser is navigated with window.location.replace(targetUrl.toString()). The redirect only executes in a browser that renders index.html; npm install and require() of this package run no code and touch no installer resources. The artifact appears to be an abuse of the npm registry as a static host for a phishing/redirect lure rather than an attack on developers installing the package.

Source: ghsa-malware (e19fa62b42fed4ea0f175e4fa4838fefd1072ffef406b9342de3e187b9529ebf)

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": [
        {
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "id": "GHSA-cvfr-666p-q22g",
            "import_time": "2026-08-12T10:39:02.397259531Z",
            "sha256": "e19fa62b42fed4ea0f175e4fa4838fefd1072ffef406b9342de3e187b9529ebf",
            "modified_time": "2026-08-12T10:29:55Z",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-017490",
            "import_time": "2026-08-12T12:51:45.554015994Z",
            "sha256": "925628ce795fdbf222c292ae4ccfbe710eda2fa1b6fd521db3379f9569e16f9b",
            "versions": [
                "1.0.0"
            ],
            "source": "amazon-inspector",
            "modified_time": "2026-08-12T12:29:04Z"
        },
        {
            "id": "IN-MAL-2026-017481",
            "import_time": "2026-08-12T12:51:45.012728218Z",
            "sha256": "f11854867830a09107a4e2b5aca31d2fbb111c823683e77a37f598d52507ec93",
            "modified_time": "2026-08-12T12:27:41Z",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / cvmbxcjiasdg

Package

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

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

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"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "index.html",
            "tlsh": "a8d2c4a063c1344815179e77bb1ff6e6e63a7aab7219084af50d7c44ff61a08c9d4b38",
            "sha256": "0c257fd89cfa4095ca19f1047b3581cd8d62d79a514fbd1acdf59f5a1e0bf48f"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/cvmbxcjiasdg/MAL-2026-13799.json"