{"id":"CVE-2020-8139","details":"A missing access control check in Nextcloud Server \u003c 18.0.1, \u003c 17.0.4, and \u003c 16.0.9 causes hide-download shares to be downloadable when appending /download to the URL.","modified":"2026-07-08T05:56:48.208117081Z","published":"2020-03-20T21:15:17.640Z","database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"32"},{"last_affected":"32"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"}]},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/"},{"type":"ADVISORY","url":"https://nextcloud.com/security/advisory/?id=NC-SA-2020-015"},{"type":"REPORT","url":"https://hackerone.com/reports/788257"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/server","events":[{"introduced":"6781f9fc7652f735a75abd869ab3e79878fceec9"},{"fixed":"a02107dcb67fdeac7f5b39849a2206b4c20e3559"},{"introduced":"c937c8f1753b111086e28afa396f3abd5776b1db"},{"fixed":"db077774e6f893610419a96efc385e5d2cdf111d"},{"introduced":"fe6fdfe50de3d46e0ae18ce5b2f216855004df4f"},{"fixed":"f6bd5afd0370ae6308529047ba6344acf8d382a3"}],"database_specific":{"extracted_events":[{"introduced":"16.0.0"},{"fixed":"16.0.9"},{"introduced":"17.0.0"},{"fixed":"17.0.4"},{"introduced":"18.0.0"},{"fixed":"18.0.1"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*"}}],"versions":["v16.0.9RC2","v17.0.4RC2","v16.0.9RC1","v17.0.4RC1","v18.0.1RC3","v18.0.1RC2","v18.0.1RC1","v16.0.8","v17.0.3","v16.0.8RC1","v17.0.3RC1","v18.0.0","v16.0.7","v17.0.2","v16.0.7RC1","v17.0.2RC1","v17.0.1","v16.0.6","v16.0.6rc1","v17.0.1rc1","v17.0.0","v16.0.5","v16.0.5RC1","v16.0.4","16.0.4","v16.0.4RC1","v16.0.3","v16.0.2","v16.0.2RC1","v16.0.1","v16.0.1RC1","v16.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8139.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}