{"id":"MAL-2026-2965","summary":"Malicious code in build-metadata-logger (PyPI)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (be01b550f3d8914aa6bd8659c9a410054e4e0bf9203d33e93478eb444e957b55)\nInstalling the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.\n\n\n---\n\nCategory: 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.\n\n\nCampaign: GENERIC-standard-pypi-install-pentest\n\n\nReasons (based on the campaign):\n\n\n - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n","modified":"2026-04-21T12:01:53.487563Z","published":"2026-04-21T11:15:14Z","database_specific":{"malicious-packages-origins":[{"import_time":"2026-04-21T11:54:56.950110977Z","versions":["0.0.1"],"source":"kam193","sha256":"be01b550f3d8914aa6bd8659c9a410054e4e0bf9203d33e93478eb444e957b55","id":"pypi/GENERIC-standard-pypi-install-pentest/build-metadata-logger","modified_time":"2026-04-21T11:15:14.671495Z"}]},"references":[{"type":"WEB","url":"https://bad-packages.kam193.eu/pypi/package/build-metadata-logger"}],"affected":[{"package":{"name":"build-metadata-logger","ecosystem":"PyPI","purl":"pkg:pypi/build-metadata-logger"},"versions":["0.0.1"],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/build-metadata-logger/MAL-2026-2965.json"}}],"schema_version":"1.7.5","credits":[{"name":"Kamil Mańkowski (kam193)","contact":["https://github.com/kam193","https://bad-packages.kam193.eu/"],"type":"REPORTER"}]}