MAL-2026-16281

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@sanzoffc/baileys/MAL-2026-16281.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16281
Published
2026-09-18T04:29:33Z
Modified
2026-09-18T04:45:05Z
Summary
Malicious code in @sanzoffc/baileys (npm)
Details

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

Source: amazon-inspector (4393cd98419ed1fce683c0fde038bce830873769d85d69e64674df61f68502bc)

This package is a fork of the Baileys WhatsApp library that adds covert remote-controlled behavior driven by the installer's authenticated WhatsApp session. In lib/Socket/socket.js, socketConnect() (invoked from validateConnection on every WebSocket open) reconstructs a URL from a String.fromCharCode char-code array that resolves to https://raw.githubusercontent.com/skyzopedia/NewsletterID/refs/heads/main/VIP_Push.json, fetches that JSON list, and iterates it to issue WhatsApp GraphQL mutations with query_id 7871414976211147 (newsletter subscribe/follow) for each id in the remote-supplied list. The list is hosted on a mutable personal-GitHub branch controlled by a third party, so whoever edits that file determines which actions the installer's WhatsApp account performs. A second helper (generateMessageV) base64+XOR-decodes (key 23) a hardcoded '@newsletter' JID and pairs it with the same query_id 7871414976211147, then schedules the same subscription action 40 seconds after invocation - layered string obfuscation of a fixed destination JID that has no legitimate purpose in a WhatsApp protocol library. The behavior is not documented, not caller-configurable, and the URL and JID are deliberately obfuscated to evade string scanners. The manifest additionally declares '@whiskeysockets/eslint-config' as an unpinned github: source and pins most other dependencies to '*', widening the resolution trust boundary.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-020178",
            "import_time": "2026-09-18T04:43:03.710609626Z",
            "modified_time": "2026-09-18T04:29:33Z",
            "sha256": "4393cd98419ed1fce683c0fde038bce830873769d85d69e64674df61f68502bc",
            "source": "amazon-inspector",
            "versions": [
                "3.0.4"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @sanzoffc/baileys

Package

Name
@sanzoffc/baileys
View open source insights on deps.dev
Purl
pkg:npm/%40sanzoffc/baileys

Affected ranges

Affected versions

3.*
3.0.4

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": "lib/Socket/socket.js",
            "sha256": "ea57a6770cf2c246e27a5ffe85ffeb496624f9b1582868d5dff184fd6369a394",
            "tlsh": "ffd2b41b46f3053aab777476562b6021333580073a48dca57bac8254af8e778e6e77cc"
        },
        {
            "path": "package.json",
            "sha256": "c133372660768c7345c90deac3371900a7ee0879d56082fd6f6f40fd7ea605f7",
            "tlsh": "f541ee21cfae4d3314da2585e9a5900265a809f3be487c2c7394967c4f4e25f27be8ed"
        }
    ],
    "package_integrity": [
        {
            "filename": "baileys-3.0.4.tgz",
            "hashes": {
                "sha1": "b1b8fe6ee997780989e23290233629da98dca16d",
                "sha512_sri": "sha512-prWbJsDnAnMsugsWjA9VR0Kx7JQ5y0y87ze+VO1sGwll/kBIsTvkQI7lMiq6/0SWDs5GJAIr77A8BHCg72G5JQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@sanzoffc/baileys/MAL-2026-16281.json"