MAL-2026-2965

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/build-metadata-logger/MAL-2026-2965.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-2965
Published
2026-04-21T11:15:14Z
Modified
2026-04-21T12:01:53.487563Z
Summary
Malicious code in build-metadata-logger (PyPI)
Details

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

Source: kam193 (be01b550f3d8914aa6bd8659c9a410054e4e0bf9203d33e93478eb444e957b55)

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": "be01b550f3d8914aa6bd8659c9a410054e4e0bf9203d33e93478eb444e957b55",
            "modified_time": "2026-04-21T11:15:14.671495Z",
            "versions": [
                "0.0.1"
            ],
            "id": "pypi/GENERIC-standard-pypi-install-pentest/build-metadata-logger",
            "import_time": "2026-04-21T11:54:56.950110977Z"
        }
    ]
}
References
Credits

Affected packages

PyPI / build-metadata-logger

Package

Name
build-metadata-logger
View open source insights on deps.dev
Purl
pkg:pypi/build-metadata-logger

Affected ranges

Affected versions

0.*
0.0.1

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/build-metadata-logger/MAL-2026-2965.json"