MAL-2026-16102

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/mfatest2/MAL-2026-16102.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16102
Published
2026-09-09T21:10:52Z
Modified
2026-09-09T21:30:03Z
Summary
Malicious code in mfatest2 (npm)
Details

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

Source: amazon-inspector (8dea6c92bd37f4ff11dfa24ad1415d1a01351ee62baf37718a7c10362d393c15)

package.json declares its only runtime dependency as an unpinned GitHub ref ("node-net-pool": "github:trktgq0wbre1/node-net-pool") pointing at a random-handle user account, contradicting the package's own 'Zero runtime dependencies — pure Node.js built-ins only' claim in the README. npm install resolves whatever HEAD of that repository currently returns, and lib/cache.js executes a top-level require of that dependency inside a swallowed try/catch, using the bracketed form module['require']('node-net-pool') that evades naive grep for require('node-net-pool'). The README documents an 'Asset prefetch' step in which the loaded dependency resolves a remote endpoint from an internal segment registry, downloads a 'runtime patch asset', and executes it as a detached background worker via child_process.execFile — placing the fetch-and-execute mechanism inside the mutable off-registry dependency that the author can update at any time. The package advertises Discord MFA / vanity-URL sniping, a category where such mislabeled-dependency channels are routinely used to smuggle credential-stealer code.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-019901",
            "import_time": "2026-09-09T21:14:32.954673352Z",
            "modified_time": "2026-09-09T21:10:52Z",
            "sha256": "8dea6c92bd37f4ff11dfa24ad1415d1a01351ee62baf37718a7c10362d393c15",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / mfatest2

Package

Name
mfatest2
View open source insights on deps.dev
Purl
pkg:npm/mfatest2

Affected ranges

Affected versions

1.*
1.0.0

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "package.json",
            "sha256": "9cf3f0ac63ca057630dc55c150cb3e91d59f6e72ee1a3cbac46f45c1a71b4a98",
            "tlsh": "48216636c8f85c5327d52690a9194193f673081b0949bc11738a827d8fdd1af26ff16e"
        },
        {
            "path": "lib/cache.js",
            "sha256": "40ad444731103c356ac7643b1a58e6093fcce1ea2f43977fb07f34833d37178a",
            "tlsh": "1f416c5f39c1f0261bf7a57da91f874ab76c990c200cd5a0796943ecba3213c47b7859"
        },
        {
            "path": "README.md",
            "sha256": "5e60650cafc34b11efcef3d7a355c77dc18bbe2f09d6c6891b7907fbbd3e59df",
            "tlsh": "90f1f6331e53347a3ef7c296f7412991ff22500d531660a0b45e90ada34a3e1cb6f6d6"
        }
    ],
    "package_integrity": [
        {
            "filename": "mfatest2-1.0.0.tgz",
            "hashes": {
                "sha1": "ef869c62f8fb5ab92710bccd6f2026f6a014e515",
                "sha512_sri": "sha512-vrBawjpmdAtkduze56yAWghaREc21OFbbvcq4fjH/qendvocqBRDYmNW0p1NUOLg2Q4CJpXpVUjDHdTSjwUP6w=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/mfatest2/MAL-2026-16102.json"