MAL-2026-18951

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bintzge-baileys/MAL-2026-18951.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18951
Published
2026-10-27T00:00:00Z
Modified
2026-11-09T23:15:30Z
Summary
Malicious code in bintzge-baileys (npm)
Details

bintzge-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) 120363364987398307@newsletter, 120363390026302997@newsletter, 120363401467939056@newsletter, 120363407277177688@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": "3dd4d474b0d49a7fa2ee346d0bdf2c8d6fc44230b95ecb01f24252abcddeb7df"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "81fe10ad8743aa433b69ab20f0574df642ce9b30b6a82df744dcdba7f82c419e"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "c535146429d09a070c4986f1905dfbaf8a2314a0d3f33ffe07ca48b067b2f8b2"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "ccad7c2b94cc923ad55780e6602ed50f2d196fa047506ec0ad67f6584a9dad43"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "dc3d30dfa36294982ca36a0034717ba811a39a0f35bdeb1bee6a4554eca94f20"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            }
        ],
        "ips": [],
        "urls": []
    }
}
References
Credits

Affected packages

npm / bintzge-baileys

Package

Name
bintzge-baileys
View open source insights on deps.dev
Purl
pkg:npm/bintzge-baileys

Affected ranges

Affected versions

1.*
1.0.1
2.*
2.0.2
2.0.3
2.0.5
2.0.9
3.*
3.0.0
3.0.1

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/bintzge-baileys/MAL-2026-18951.json"