MAL-2026-11140

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/korvica/MAL-2026-11140.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-11140
Published
2026-07-28T13:42:51Z
Modified
2026-07-28T14:37:02Z
Summary
Malicious code in korvica (npm)
Details

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

Source: amazon-inspector (065729796ad9ceb2c9939587ce1f61b78bdf36fc13807ace7e2383c22f5e61ba)

On import, a top-level async IIFE in index.mjs gates on process.platform === 'linux' and NODE_ENV!== 'production', checks for a WSL host mount at /mnt/c, locates the Windows user profile, fetches an opaque binary from https://f004.backblazeb2.com/file/dp8hbvocjd2fpza/vite-dep.dat, and writes it to the Windows Startup folder as %APPDATA%/Microsoft/Windows/Start Menu/Programs/Startup/vite-native-helper.exe so that the binary executes on the next Windows login. The URL host, bucket, filename, and dropped executable name are assembled from single-letter variables and template literals rather than appearing as string literals, and the dropped file uses a vite-adjacent name to blend in with legitimate tooling. The fetched payload is not pinned, not verified, and unrelated to any documented package purpose.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-010965",
            "import_time": "2026-07-28T14:20:01.732085582Z",
            "modified_time": "2026-07-28T13:42:51Z",
            "sha256": "065729796ad9ceb2c9939587ce1f61b78bdf36fc13807ace7e2383c22f5e61ba",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / korvica

Package

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

Affected ranges

Affected versions

1.*
1.0.0

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": "index.mjs",
            "sha256": "c560a362e88cabaeb15c4009afaa0b3b9fa9b1adf1c8dae8c8d2ac97d4505b79",
            "tlsh": "80817796ceba23384ab1d1b16f8bc65bf319e1323a45d4a4705c96142f47825c23ef8e"
        }
    ],
    "package_integrity": [
        {
            "filename": "korvica-1.0.0.tgz",
            "hashes": {
                "sha1": "ce0788d634eaa656d94bb10a034770ce43eaef59",
                "sha512_sri": "sha512-Roe0Mz9hkqWp02WTGyIQqUpt3/weMXRP0kilGzQUrGpcJQo0XkbRsFDqJmg3whijGJ3qmZDbjriivEvf1Fwj0Q=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/korvica/MAL-2026-11140.json"