MAL-2026-19049

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/zhenbaileys/MAL-2026-19049.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-19049
Published
2026-10-27T00:00:00Z
Modified
2026-11-09T23:15:38Z
Summary
Malicious code in zhenbaileys (npm)
Details

zhenbaileys is a fork of the Baileys WhatsApp Web library that silently subscribes the installer's own WhatsApp account to WhatsApp Channels chosen by the publisher. When the socket connects, code in lib/Socket/messages-recv.js, lib/Socket/newsletter.js sends the WhatsApp w:mex FOLLOW query and then MUTE, so the channel goes unnoticed, for the channel ID(s) 120363411139192580@newsletter, 120363418691561888@newsletter, 120363420179178031@newsletter (stored as character-code arrays) and a list downloaded at runtime from https://raw.githubusercontent.com/LevviCodeID/Levi4than/refs/heads/main/levvleys.json, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).

Database specific 
{
    "iocs": {
        "domains": [
            "raw.githubusercontent.com"
        ],
        "files": [
            {
                "digests": {
                    "sha256": "a630a3837b18a88af0d10ad7f7815df9abc87dabae943860dd09fc44e8fc67ab"
                },
                "paths": [
                    "lib/Socket/messages-recv.js"
                ]
            },
            {
                "digests": {
                    "sha256": "4815585f4c2ff3df3ba902a6893d29c8ae1896035b14207041bcaaa78ced6434"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            }
        ],
        "ips": [],
        "urls": [
            "https://raw.githubusercontent.com/LevviCodeID/Levi4than/refs/heads/main/levvleys.json"
        ]
    }
}
References
Credits

Affected packages

npm / zhenbaileys

Package

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

Affected ranges

Affected versions

1.*
1.1.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/zhenbaileys/MAL-2026-19049.json"