MAL-2026-2957

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/cycode-dev/MAL-2026-2957.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-2957
Published
2026-04-20T20:47:16Z
Modified
2026-04-20T21:40:56Z
Summary
Malicious code in cycode-dev (PyPI)
Details

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

Source: kam193 (af035661f0964977015279eeceb2e380bf8b525463d4a099d85eab7b4ea8a71b)

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/cycode-dev",
            "import_time": "2026-04-20T21:20:56.022810544Z",
            "modified_time": "2026-04-20T20:47:16.428385Z",
            "sha256": "af035661f0964977015279eeceb2e380bf8b525463d4a099d85eab7b4ea8a71b",
            "source": "kam193",
            "versions": [
                "99.9.9"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / cycode-dev

Package

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

Affected ranges

Affected versions

99.*
99.9.9

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/cycode-dev/MAL-2026-2957.json"