MAL-2026-19015

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/shin-yagami/MAL-2026-19015.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-19015
Published
2026-10-27T00:00:00Z
Modified
2026-11-09T23:15:36Z
Summary
Malicious code in shin-yagami (npm)
Details

shin-yagami 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 WhatsApp/node.js sends the WhatsApp w:mex FOLLOW query for the channel ID(s) 120363421179449531@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": "aa7331459de71d6c787d1f252887a78f393e1a6517e5cbe53ac1d17dbb15316f"
                },
                "paths": [
                    "WhatsApp/node.js"
                ]
            }
        ],
        "ips": [],
        "urls": []
    }
}
References
Credits

Affected packages

npm / shin-yagami

Package

Name
shin-yagami
View open source insights on deps.dev
Purl
pkg:npm/shin-yagami

Affected ranges

Affected versions

2.*
2.0.4

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/shin-yagami/MAL-2026-19015.json"