MAL-2026-505

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/flask-hookserver/MAL-2026-505.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-505
Published
2026-01-25T11:13:11Z
Modified
2026-01-25T11:47:57.186707Z
Summary
Malicious code in flask-hookserver (PyPI)
Details

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

Source: kam193 (4d5afd1538994efa55632d3ed6d7c9fa419fb26c542b641a3efbd7b35501ea58)

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": [
        {
            "source": "kam193",
            "sha256": "4d5afd1538994efa55632d3ed6d7c9fa419fb26c542b641a3efbd7b35501ea58",
            "versions": [
                "999.0.0",
                "999.0.1"
            ],
            "import_time": "2026-01-25T11:36:17.029924645Z",
            "modified_time": "2026-01-25T11:25:04.711665Z",
            "id": "pypi/GENERIC-standard-pypi-install-pentest/flask-hookserver"
        }
    ]
}
References
Credits

Affected packages

PyPI / flask-hookserver

Package

Name
flask-hookserver
View open source insights on deps.dev
Purl
pkg:pypi/flask-hookserver

Affected ranges

Affected versions

999.*

999.0.0
999.0.1

Database specific

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/flask-hookserver/MAL-2026-505.json"