MAL-2026-18684

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@zyrennofficiall/baileys/MAL-2026-18684.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18684
Published
2026-10-26T00:00:00Z
Modified
2026-11-05T05:15:05Z
Summary
Malicious code in @zyrennofficiall/baileys (npm)
Details

@zyrennofficiall/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. A timer started when the socket connects, in lib/Socket/newsletter.js, sends the WhatsApp w:mex FOLLOW query for the channel ID(s) 120363408893555851@newsletter, 120363426470081124@newsletter, 120363427718144294@newsletter (stored base64-encoded), using the victim's authenticated session and without telling them. This is separate from the update-channel follow the package announces in lib/Socket/index.js. Same behaviour as the PhantomSub family (MAL-2026-17342).

Database specific 
{
    "iocs": {
        "domains": [],
        "files": [
            {
                "digests": {
                    "sha256": "20563a542cc514c1dfb2f4f44a653d6740189ab9c5b34da5c7313e69c0608ea4"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            }
        ],
        "ips": [],
        "urls": []
    }
}
References
Credits

Affected packages

npm / @zyrennofficiall/baileys

Package

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

Affected ranges

Affected versions

5.*
5.1.0
5.2.0
5.3.0
5.4.0
5.5.0

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/@zyrennofficiall/baileys/MAL-2026-18684.json"