{"id":"ALPINE-CVE-2023-28998","details":"The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new files.\u200b Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available.","modified":"2026-11-03T06:32:48.378130125Z","published":"2023-04-04T13:15:08.937Z","upstream":["CVE-2023-28998"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2023-28998"}],"affected":[{"package":{"name":"nextcloud-client","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/nextcloud-client?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28998.json"}},{"package":{"name":"nextcloud-client","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/nextcloud-client?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28998.json"}},{"package":{"name":"nextcloud-client","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/nextcloud-client?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28998.json"}},{"package":{"name":"nextcloud-client","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/nextcloud-client?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28998.json"}},{"package":{"name":"nextcloud-client","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/nextcloud-client?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28998.json"}},{"package":{"name":"nextcloud-client","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/nextcloud-client?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28998.json"}},{"package":{"name":"nextcloud-client","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/nextcloud-client?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-28998.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N"}]}