MAL-2026-14193

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ts-rand-sdk/MAL-2026-14193.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-14193
Published
2026-08-19T00:04:55Z
Modified
2026-08-19T00:30:14.895740215Z
Summary
Malicious code in ts-rand-sdk (npm)
Details

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

Source: amazon-inspector (7f3c43a89866228b5365b9e318da3ea953bb2c5b7da94136d887359e8e1f07a8)

Package presents itself as a random transactions SDK exposing a single API, getTransactions(count). Following that documented usage triggers a hidden loader: loadtransactiondata reads database.js (framed as a product catalog), takes each record's mark field, base64-decodes it, applies a per-record byte shift keyed on count % 256, concatenates the fragments in id order, base64-decodes the result again, and passes the resulting JavaScript source into a Function constructor obtained indirectly via globalThis.constructor.constructor. The constructed function is invoked with Buffer, require, and process passed in, giving the decoded payload full Node.js capabilities (arbitrary filesystem, process, and network access) on the caller's machine. Sensitive identifiers (setTimeout, Function, Buffer, require, process, clearTimeout) are stored as fragments in a string array and reassembled at runtime via an index-mapping helper, and execution is deferred through setTimeout, both patterns serving only to hide the payload path from reviewers. The ~54KB of mark shards inside database.js are the concealed code body; the product-catalog framing is cover. The package's advertised functionality is a facade over a runtime code-execution loader.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-19T00:21:14.613516486Z",
            "sha256": "7f3c43a89866228b5365b9e318da3ea953bb2c5b7da94136d887359e8e1f07a8",
            "modified_time": "2026-08-19T00:04:55Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-018264",
            "versions": [
                "1.0.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / ts-rand-sdk

Package

Name
ts-rand-sdk
View open source insights on deps.dev
Purl
pkg:npm/ts-rand-sdk

Affected ranges

Affected versions

1.*
1.0.2

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ts-rand-sdk/MAL-2026-14193.json"
indicators 
{
    "evidence_files": [
        {
            "sha256": "c0a1a7e54e1c759e62e48cfa835d79494163da3b37b30c1bd55c5875d9dd24f0",
            "tlsh": "0ef10f6839f930248857b07c67eb9449612de0576e9a6ca87f4d83101f7d13ce1f6ba8",
            "path": "index.js"
        },
        {
            "sha256": "2df9ecfb35f541cddca8430be72e3ccef0efe57f1aa3bd3acf21dc7e8df2114a",
            "tlsh": "5a135136cb790c5ba1b84a6069f50a4af2c0472f13a16d877ef4d54c8fb1c5b805ae7b",
            "path": "database.js"
        }
    ],
    "package_integrity": [
        {
            "filename": "ts-rand-sdk-1.0.2.tgz",
            "hashes": {
                "sha1": "84a52526a8e0833538fe7e8223bd222932a19935",
                "sha512_sri": "sha512-y9h8M6E5YRuP3s/SyQ+ys/Z8uzPHR6R7NqytAE1vw88Y2vtyBQCZ3dffJgsBIFfErjdXlE6SDsQ/xi6PRjM8eg=="
            }
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]