MAL-2026-4578

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/withdrawn/npm/hiura-baileys/MAL-2026-4578.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4578
Withdrawn
2026-05-26T22:13:04Z
Published
2026-05-23T15:34:59Z
Modified
2026-05-27T00:32:11Z
Summary
Malicious code in hiura-baileys (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (5ebb60061f29d4f4279bca1129ebfccefb928bd22364f26961205935ff71393f)

This is a fork of the Baileys WhatsApp library that adds undocumented behavior abusing the consumer's authenticated WhatsApp account for the author's benefit. When a consumer creates a socket via the package's exported makeWASocket(), lib/Socket/newsletter.js installs a connection.update handler plus a setInterval that fires every 5 minutes and forces the consumer's WhatsApp account to FOLLOW four hardcoded newsletter JIDs (120363427799422972@newsletter, 120363406211814115@newsletter, 120363421855151554@newsletter, and a fourth JID hidden as a hex blob and decrypted at runtime). A messages.upsert listener additionally auto-reacts with random emoji to every message from the hidden newsletter JID, manufacturing engagement on the author's channel using the caller's account. The hidden JID is concealed via a custom AES-256-CBC helper (lib/Utils/hiura-crypto-utils.js) keyed off the string 'hiura-baileys-1.0', with deliberately cryptic function names (sudahBasibasiAjaLu, minimalKaloMauDecryptYangPinterDek) and an in-source comment 'You'll never find what this does - Nimzz' confirming covert intent. The custom crypto helper exists solely to hide one constant. This is silent-relay: a hardcoded destination the API caller did not choose, routing the caller's WhatsApp account state to the author for subscriber/engagement growth.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-004356",
            "import_time": "2026-05-26T05:52:26.448915188Z",
            "modified_time": "2026-05-23T16:09:34Z",
            "sha256": "5ebb60061f29d4f4279bca1129ebfccefb928bd22364f26961205935ff71393f",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ]
        },
        {
            "id": "IN-MAL-2026-004401",
            "import_time": "2026-05-26T05:52:31.555554077Z",
            "modified_time": "2026-05-23T23:29:43Z",
            "sha256": "c2c6731d11833debcb4196bba6fd30aa1b3a4f38e5e74e739f1278970aefb9ff",
            "source": "amazon-inspector",
            "versions": [
                "1.0.3"
            ]
        },
        {
            "id": "IN-MAL-2026-004348",
            "import_time": "2026-05-26T05:52:25.436288028Z",
            "modified_time": "2026-05-23T15:34:59Z",
            "sha256": "f8a33230607b6ae5c9b58629832a15127e7b192469a73954553664e9f77b3a67",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / hiura-baileys

Package

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

Affected ranges

Affected versions

1.*
1.0.0
1.0.1
1.0.3

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "lib/Socket/newsletter.js",
            "sha256": "2ad7782f8220d5cf5b3f1fd0cbe1c03c657c6bbe7634d921752f13ce06e1ec48",
            "tlsh": "1b72855669fa56a90ba37055a67fb0e0b331b143796598673f8cd0020f4a1dce8b37d8"
        },
        {
            "path": "lib/Utils/hiura-crypto-utils.js",
            "sha256": "d30141c4d712e92f4f01ff7bb892762dcb8e26b2165acc1e61a0eed6c59f8537",
            "tlsh": "672110056cb372e407ba88df437fdc8ae861b4233310c7a8bb0eaf864fd414844550ea"
        }
    ],
    "package_integrity": [
        {
            "filename": "hiura-baileys-1.0.1.tgz",
            "hashes": {
                "sha1": "32ae0d8988723059e68a3f0c773f0c45289be827",
                "sha512_sri": "sha512-l+lURI56yJhrWxsBMEl9hb/EDFMZyc9aD9LIg59wyslnoJcgF351V9ka817Gwv1FhRDGtG6WJdjCMgdJW7Y75A=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/withdrawn/npm/hiura-baileys/MAL-2026-4578.json"