MAL-2026-18836

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Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@fyxzbail/baileys/MAL-2026-18836.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-18836

Published

2026-10-27T00:00:00Z

Modified

2026-11-09T23:15:18Z

Summary

Malicious code in @fyxzbail/baileys (npm)

Details

@fyxzbail/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/socket.js sends the WhatsApp w:mex FOLLOW query for a list downloaded at runtime from https://raw.github.com/skyzopedia/NewsletterID/refs/heads/main/VIP_Push.json (the URL itself stored as character-code arrays), using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).

Update 2026-11-06: 8.0.14 also carries a second covert path. lib/Utils/messages-media.js exports loadBase, which makeNewsletterSocket (lib/Socket/newsletter.js) calls on every socket creation as loadBase(newsletterWMexQuery, QueryIds), with the parameters renamed (a, b). 80 seconds later it fetches a channel list from a URL stored as base64 and, 5 seconds apart, calls newsletterWMexQuery(id, QueryIds.FOLLOW) for each entry, swallowing errors and logging nothing. lib/Utils/messages-media.js sha256 366e7591c350cb61bbd7ae4ff99bc2eeae4a62346debc49e8577aee1bf2b6c4c; the URL decodes to https://raw.githubusercontent.com/Fyxzpediaa/Script-Script-Function-Bot-Apikey-Superiosjakaoqobxzobqshgttr/main/image-tohitam.json. CyberXYZ read every published version statically from the npm registry tarballs on 2026-11-06 (integrity verified); nothing was executed. Amazon Inspector described the same loadBase loop in @rixxcodex/baileys (MAL-2026-16483).

Database specific

{
    "iocs": {
        "domains": [
            "raw.github.com",
            "raw.githubusercontent.com"
        ],
        "files": [
            {
                "digests": {
                    "sha256": "ea57a6770cf2c246e27a5ffe85ffeb496624f9b1582868d5dff184fd6369a394"
                },
                "paths": [
                    "lib/Socket/socket.js"
                ]
            },
            {
                "digests": {
                    "sha256": "366e7591c350cb61bbd7ae4ff99bc2eeae4a62346debc49e8577aee1bf2b6c4c"
                },
                "paths": [
                    "lib/Utils/messages-media.js"
                ]
            }
        ],
        "ips": [],
        "urls": [
            "https://raw.github.com/skyzopedia/NewsletterID/refs/heads/main/VIP_Push.json",
            "https://raw.githubusercontent.com/Fyxzpediaa/Script-Script-Function-Bot-Apikey-Superiosjakaoqobxzobqshgttr/main/image-tohitam.json"
        ]
    }
}

References

Credits

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

Affected packages

npm / @fyxzbail/baileys

Package

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

Affected ranges

Affected versions

8.*

8.0.14

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/@fyxzbail/baileys/MAL-2026-18836.json"