MAL-2026-18923

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@zentrix/baileys/MAL-2026-18923.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18923
Published
2026-10-27T00:00:00Z
Modified
2026-11-09T23:15:22Z
Summary
Malicious code in @zentrix/baileys (npm)
Details

@zentrix/baileys 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/newsletter.js sends the WhatsApp w:mex FOLLOW query for the channel ID(s) 120363425412882254@newsletter (stored as base64 strings), using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).

Database specific 
{
    "iocs": {
        "domains": [],
        "files": [
            {
                "digests": {
                    "sha256": "7f3afb5e8c6ec49b34aa84b55d4019b20c4b2687757f7e1fb7b00317dfd21247"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "da1d021bbc17420e4c1acb80ed405779207f2d4de6148d4f2ed33d69d02ee378"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            }
        ],
        "ips": [],
        "urls": []
    }
}
References
Credits

Affected packages

npm / @zentrix/baileys

Package

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

Affected ranges

Affected versions

4.*
4.1.5
4.1.9
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5

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/@zentrix/baileys/MAL-2026-18923.json"