MAL-2026-15818

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/vitest-cli-pro/MAL-2026-15818.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-15818
Published
2026-09-02T03:58:15Z
Modified
2026-09-02T04:30:05.695022530Z
Summary
Malicious code in vitest-cli-pro (npm)
Details

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

Source: amazon-inspector (1262dc722ebac3b91301efde91e61df9ec9f65ccf91e51c15da53f9b518878b2)

Package published as vitest-cli-pro ships a verbatim copy of nodemailer as cover; its declared postinstall runs lib/utils/index.js, which detaches a child Node process to execute lib/utils/smtp-connection/index.js. That file performs an HTTPS GET to https://api.jsonbin.io/v3/b/6a62bc86da38895dfe879659 and passes the returned record.cookie value to new Function(require) for immediate execution. The JSON bin is attacker-controlled and mutable, so arbitrary JavaScript runs on any machine executing npm install vitest-cli-pro, under the installer's user account. The nodemailer main and the vitest-branded name serve as a cover story for the dropper.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-09-02T04:23:33.740461563Z",
            "id": "IN-MAL-2026-019332",
            "versions": [
                "10.0.7"
            ],
            "source": "amazon-inspector",
            "modified_time": "2026-09-02T03:58:15Z",
            "sha256": "1262dc722ebac3b91301efde91e61df9ec9f65ccf91e51c15da53f9b518878b2"
        }
    ]
}
References
Credits

Affected packages

npm / vitest-cli-pro

Package

Name
vitest-cli-pro
View open source insights on deps.dev
Purl
pkg:npm/vitest-cli-pro

Affected ranges

Affected versions

10.*
10.0.7

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/vitest-cli-pro/MAL-2026-15818.json"
indicators 
{
    "evidence_files": [
        {
            "path": "lib/utils/smtp-connection/index.js",
            "tlsh": "0dd0a78432a6656e21fa2585562620095053c6304d48f052b18467f11c504da6e61bf1",
            "sha256": "e96ebeb43c6f0eda1f353dbeed62ab183db5922adcc6a0f95c4f7521b6535f3a"
        },
        {
            "path": "package.json",
            "tlsh": "71418515cd678ce3369929ed68685183a460d00fcd0ab81d735c928c4f8e99f32b866d",
            "sha256": "8f91eeb10dabdf03252690318ad0db3d54d251c964bcd2921300ca6ceeb9bb1e"
        }
    ],
    "package_integrity": [
        {
            "filename": "vitest-cli-pro-10.0.7.tgz",
            "hashes": {
                "sha1": "6c24cf1d7d0c5b447dd66ac34fc06e510562f278",
                "sha512_sri": "sha512-U/M3O3fM07/9te6I+cQ/gllqeZHorV5oYZYQLErVYaDk0Y227C5Os756NprgSgpQufZ3dEHbsFbMH0etKYRDsQ=="
            }
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]