MAL-2026-12097

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@wethenorth12/mnemonic-to-key/MAL-2026-12097.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12097
Published
2026-08-05T06:22:38Z
Modified
2026-08-05T07:20:55.315776407Z
Summary
Malicious code in @wethenorth12/mnemonic-to-key (npm)
Details

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

Source: amazon-inspector (c373b3f6b1c60d079fb7c63d13a51f7e42ee41feeff2c04c5ab925ad5dad41fb)

Package advertises itself as a drop-in replacement for bip39 and exposes stub wallet functions (createWallet, generateMnemonic) to attract wallet-handling projects. On module load, index.js reads the full process.env dictionary along with hostname, username, home directory, platform, and cwd, JSON-encodes and base64-encodes the payload, and transmits it as a URL query parameter to a hardcoded Telegram Bot API sendMessage endpoint (bot 7231970337, chat 8969499041). A temporary flag file is written to suppress repeated sends. Environment variables in developer and CI environments routinely contain cloud credentials, npm/GitHub tokens, and database secrets, so the require-time beacon is a direct credential-theft channel controlled by the package author.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-013434",
            "import_time": "2026-08-05T07:06:47.358744543Z",
            "sha256": "c373b3f6b1c60d079fb7c63d13a51f7e42ee41feeff2c04c5ab925ad5dad41fb",
            "modified_time": "2026-08-05T06:22:38Z",
            "versions": [
                "1.2.0"
            ],
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / @wethenorth12/mnemonic-to-key

Package

Name
@wethenorth12/mnemonic-to-key
View open source insights on deps.dev
Purl
pkg:npm/%40wethenorth12/mnemonic-to-key

Affected ranges

Affected versions

1.*
1.2.0

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-wnBKu9HW0WgNkt+6Ucg3gfPxK7O7qNi5tYgwG30GVexX6KhuqgiWxwE08THpl98L2ZhoRK7Z86L9ibkBqjVX8A==",
                "sha1": "7a85705cbb7ad50a1866c5b521c9a669a958a39b"
            },
            "filename": "mnemonic-to-key-1.2.0.tgz"
        }
    ],
    "evidence_files": [
        {
            "sha256": "a6de6213df1672d3d7a67d672925467606c90c1c2b75533760e40f8599ec0dc9",
            "path": "index.js",
            "tlsh": "5f2141c837b1f88e22326482656f650b727bcaa20888ea50d5a8d5832f701c846993d8"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@wethenorth12/mnemonic-to-key/MAL-2026-12097.json"