MAL-2026-18122

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/moveworks-capi-starter/MAL-2026-18122.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18122
Published
2026-10-21T11:27:55Z
Modified
2026-10-29T14:30:32Z
Summary
Malicious code in moveworks-capi-starter (PyPI)
Details

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

Source: amazon-inspector (82a1f2ebbd0f8423c7e02c1a9b0571cec02bd6d343b88583f6a85dd06a056a99)

setup.py overrides the install command to collect the installer's hostname and resolved local IP address and POST them as JSON to the hardcoded URL https://webhook.site/17a7df2e-3d56-4c5a-b7a9-9a95fe58a533 during pip install, tagged with the package name and version. The beacon fires unconditionally at install time with no user disclosure or opt-out, and the package itself provides no documented functionality — the shipped code is a proof-of-concept beacon with placeholder author metadata. The exfiltrated data is limited to host identifiers (hostname, IP) rather than credentials, but the install-time network callback to a third-party collector enables correlation of installations with the operator of the webhook endpoint.

Source: kam193 (2cd8f99409a87f01743f65f381fefa800176a29d47d6119743ae2bd0ce1f7583)

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: GENERIC-standard-pypi-install-pentest

Reasons (based on the campaign):

  • The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

  • The package overrides the install command in setup.py to execute malicious code during installation.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "pypi/GENERIC-standard-pypi-install-pentest/moveworks-capi-starter",
            "import_time": "2026-10-21T12:26:20.424441073Z",
            "modified_time": "2026-10-21T11:27:55.241822Z",
            "sha256": "2cd8f99409a87f01743f65f381fefa800176a29d47d6119743ae2bd0ce1f7583",
            "source": "kam193",
            "versions": [
                "0.0.0",
                "0.2.0"
            ]
        },
        {
            "id": "IN-MAL-2026-021884",
            "import_time": "2026-10-29T13:37:14.948059522Z",
            "modified_time": "2026-10-29T13:20:28Z",
            "sha256": "82a1f2ebbd0f8423c7e02c1a9b0571cec02bd6d343b88583f6a85dd06a056a99",
            "source": "amazon-inspector",
            "versions": [
                "0.2.0"
            ]
        },
        {
            "id": "IN-MAL-2026-022108",
            "import_time": "2026-10-29T14:14:26.514384821Z",
            "modified_time": "2026-10-29T13:49:49Z",
            "sha256": "f545c799f25a571c81c3fe151eaecdd942889ddb616698abfed31418e4228eae",
            "source": "amazon-inspector",
            "versions": [
                "0.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / moveworks-capi-starter

Package

Name
moveworks-capi-starter
View open source insights on deps.dev
Purl
pkg:pypi/moveworks-capi-starter

Affected ranges

Affected versions

0.*
0.0.0
0.2.0

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"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "setup.py",
            "sha256": "af05a3c2fdd17199c9398fd02451a2a71da220c5c869d0dc3f28d6804eb28cdd",
            "tlsh": "89212383e8726074ea4320d0482744647683ba0f6f02ac5938cc47540fbe835e812655"
        }
    ],
    "package_integrity": [
        {
            "filename": "moveworks_capi_starter-0.2.0.tar.gz",
            "hashes": {
                "blake2b_256": "cf07b4df52ff332c639a2e9db5f62ed75400becd2a4b7a1b052e63a0e03d0619",
                "md5": "652e5312fb8182ae2feeecb7b01d41e5",
                "sha256": "58bfeeb04e1dde24310ed67a8d111bd8aed3dfed202d6d47b52a9d5b274cef55"
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/moveworks-capi-starter/MAL-2026-18122.json"