MAL-2026-18859

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@kyuu2nd/baileys/MAL-2026-18859.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18859
Published
2026-10-27T00:00:00Z
Modified
2026-11-09T23:15:23Z
Summary
Malicious code in @kyuu2nd/baileys (npm)
Details

@kyuu2nd/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) 120363330344810280@newsletter, 120363400738305381@newsletter, 120363402868866359@newsletter, 120363404790454890@newsletter, 120363404861802607@newsletter, 120363405313529091@newsletter and 13 more (stored as character-code arrays) and a list downloaded at runtime from https://raw.githubusercontent.com/kiuur/IDCH/refs/heads/main/idch.json, using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).

Database specific 
{
    "iocs": {
        "domains": [
            "raw.githubusercontent.com"
        ],
        "files": [
            {
                "digests": {
                    "sha256": "13baa4c5b9890f3c4341e7fee686f782d4015f0694397584335756577466237e"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "5551faccbf72ce892ef0c6f4097dd924b50602f04cf84196bb82b9012f8d4a25"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "5ff2ab25ea9c2d5c5682f81291c7858bc5c9d326d19f666e8ad4d50c2a588b43"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "714ef6af60d657271a50c21fbcfdbc4232af5fde4410bc94e369132a19fb6e7a"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "735ee38570cdd0496884b2e2fb79de0bae49102f26b1172175bcaf79a0ac1aab"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "76f436b74bdb6bdf14bf60acbaf5ccfd43b90b9f76b9c7d5de60a85e8bd2b07d"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "825508780335a6880fda8da07b0e443fc92c7a4ecbec4ed869d8d84fb8e86572"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "8f77c299c3e1de2d0424174d71492d1b6fa0fa7b45c9271dc3668518e59c1fc8"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "99ca6c31a5097cc519f8fb23a2985dd96a0ac8ea84239ccba54a3cf313012bd6"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "d38e80cb9afa591f4b6b560c71b2867488a7138da65c6957e03a0669b9da3757"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "d7ae2ae9c2b9197709ca28e45a6968abe81361d70e08edea0e53c26d69cffecd"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "e379a09e0e315bbd3d3b739af25c9e76fe7cbf14861f8c007b0d6bc987336817"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            },
            {
                "digests": {
                    "sha256": "fad2d892611c62196223eefc5bc54030c0fe7d251276c035277b0a126971a810"
                },
                "paths": [
                    "lib/Socket/newsletter.js"
                ]
            }
        ],
        "ips": [],
        "urls": [
            "https://raw.githubusercontent.com/kiuur/IDCH/refs/heads/main/idch.json"
        ]
    }
}
References
Credits

Affected packages

npm / @kyuu2nd/baileys

Package

Name
@kyuu2nd/baileys
View open source insights on deps.dev
Purl
pkg:npm/%40kyuu2nd/baileys

Affected ranges

Affected versions

2.*
2.0.0
2.0.1
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.10
2.0.11
2.0.12
2.0.24
2.0.25

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/@kyuu2nd/baileys/MAL-2026-18859.json"