MAL-2026-18818

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Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@denzy-official/baileys/MAL-2026-18818.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-18818

Published

2026-10-27T00:00:00Z

Modified

2026-11-09T23:15:17Z

Summary

Malicious code in @denzy-official/baileys (npm)

Details

@denzy-official/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) 120363402308105961@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": "deceaddf54737c529fd6160b7112cd2df66bc5c14738a70bb9ded95eb0174490"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            }
        ],
        "ips": [],
        "urls": []
    }
}

References

Credits

- CyberXYZ - FINDER
- - https://cyberxyz.io

Affected packages

npm / @denzy-official/baileys

Package

Name: @denzy-official/baileys; View open source insights on deps.dev
Purl: pkg:npm/%40denzy-official/baileys

Affected ranges

Affected versions

1.*

1.2.7

1.2.8

1.2.9

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/@denzy-official/baileys/MAL-2026-18818.json"