MAL-2026-18894

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@sapp1/baileys-pro/MAL-2026-18894.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18894
Published
2026-10-27T00:00:00Z
Modified
2026-11-09T23:15:25Z
Summary
Malicious code in @sapp1/baileys-pro (npm)
Details

@sapp1/baileys-pro 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) 120363404389855506@newsletter, 120363407966143171@newsletter, 120363417635528181@newsletter, 120363418090359162@newsletter, 120363424788148794@newsletter, 120363425035744417@newsletter, 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": "6b475eb23cd0f5f9d943dcfff0df8ef84a84e0e86803f35fcaa64e9a3db24d25"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            }
        ],
        "ips": [],
        "urls": []
    }
}
References
Credits

Affected packages

npm / @sapp1/baileys-pro

Package

Name
@sapp1/baileys-pro
View open source insights on deps.dev
Purl
pkg:npm/%40sapp1/baileys-pro

Affected ranges

Affected versions

1.*
1.0.1

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/@sapp1/baileys-pro/MAL-2026-18894.json"