MAL-2026-18161

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/evalstream/MAL-2026-18161.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18161
Published
2026-10-22T00:57:19Z
Modified
2026-10-29T14:30:33Z
Summary
Malicious code in evalstream (PyPI)
Details

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

Source: amazon-inspector (d0ca7b14989e601c74369996f80d2c6b6bd68200997d3a0368ba00652ade2799)

Package evalstream 0.1.0 on PyPI was examined and no install-time or import-time behavior indicative of a supply-chain attack was observed. There is no evidence of credential or environment scraping, outbound network beacons to attacker-controlled destinations, remote code fetch-and-execute, lifecycle or build-backend code execution with external network I/O, or persistent/backdoor mechanisms. No third-party credentials, registry-redirecting configuration, or dependency-dropper patterns are present.

Source: kam193 (00f8be270be4392f91ab130c7e77583408a4e24e858b22522158a61116c0a0d4)

This campaign consists of similar loader packages, which provide executing code from a given URL. While they do not contain the malicious payload and the usage remains unknown, they are clearly a coordinated campaign to place multiple deceptive ways to load malicious code.

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-10-voice-synthesis-profiles

Reasons (based on the campaign):

  • other

  • Downloads and executes a remote malicious script.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "pypi/2026-10-voice-synthesis-profiles/evalstream",
            "import_time": "2026-10-22T01:26:38.723996722Z",
            "modified_time": "2026-10-22T00:57:19.385787Z",
            "sha256": "00f8be270be4392f91ab130c7e77583408a4e24e858b22522158a61116c0a0d4",
            "source": "kam193",
            "versions": [
                "0.1.0"
            ]
        },
        {
            "id": "IN-MAL-2026-022223",
            "import_time": "2026-10-29T14:14:35.588849822Z",
            "modified_time": "2026-10-29T14:04:53Z",
            "sha256": "d0ca7b14989e601c74369996f80d2c6b6bd68200997d3a0368ba00652ade2799",
            "source": "amazon-inspector",
            "versions": [
                "0.1.0"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / evalstream

Package

Name
evalstream
View open source insights on deps.dev
Purl
pkg:pypi/evalstream

Affected ranges

Affected versions

0.*
0.1.0

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": [
        {
            "filename": "evalstream-0.1.0-py3-none-any.whl",
            "hashes": {
                "blake2b_256": "8e429142ea97278ea2ea5b179d68022c1777c2f9b1b654fad26b5eebdc5cccb0",
                "md5": "863e0fd9248ee43a4ac5f778d7eb94e1",
                "sha256": "3723b725e029eaab1101f44f1714aa8f75da474ada8cd3e1d36742e866063b5a"
            }
        },
        {
            "filename": "evalstream-0.1.0.tar.gz",
            "hashes": {
                "blake2b_256": "c0fa7a91349f7d347debc5dacb986cc718cf42f126de426fd57b31d97d13f241",
                "md5": "4f4f9d9a884396e4bb0047b8dd2f929b",
                "sha256": "6fec082b2f7780c28dd41f03e3669eb7c8ab27115e865c88c7ebfd2f4bc77c13"
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/evalstream/MAL-2026-18161.json"