{"id":"CVE-2016-20021","aliases":["GHSA-pw5x-x5jw-ccmh","PYSEC-2024-10"],"url":"https://o3.security/vulnerability/CVE-2016-20021","summary":"Gentoo Portage missing PGP validation of executed code","details":"In Gentoo Portage before 3.0.47, there is missing PGP validation of executed code: the standalone emerge-webrsync downloads a .gpgsig file but does not perform signature verification. Unless emerge-webrsync is used, Portage is not vulnerable.","published":"2024-01-12T03:15:08.410Z","modified":"2026-07-08T12:53:11.794264Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"portage","fixedVersion":"3.0.47"}],"fix":null,"references":[{"type":"WEB","url":"https://wiki.gentoo.org/wiki/Portage"},{"type":"ADVISORY","url":"https://gitweb.gentoo.org/proj/portage.git/tree/NEWS"},{"type":"FIX","url":"https://bugs.gentoo.org/597800"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T12:53:11.794264Z"}}