{"id":"CVE-2020-8259","aliases":["EUVD-2020-29129","GHSA-548f-j4fj-64c5"],"status":"published","title":"Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an...","description":"Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00736,"percentile":0.54739,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-522"],"published":"2020-11-16T00:36:43Z","modified":"2026-10-24T10:30:50Z","products":[{"vendor":"hackerone","product":"nextcloud server"},{"vendor":"nextcloud","product":"nextcloud_server"}],"references":[{"url":"https://hackerone.com/reports/732431","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nextcloud.com/security/advisory/?id=NC-SA-2020-041","tags":["x_refsource_MISC","x_transferred","Broken Link","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8259"},{"url":"https://github.com/advisories/GHSA-548f-j4fj-64c5"}],"sources":{"cve":[{"id":"CVE-2020-8259","description":"Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys.","status":"published","published":"2020-11-16T00:36:43Z","modified":"2024-08-04T09:56:27.937Z","cwes":["CWE-522"],"updated_at":"2026-11-02T14:35:50.545879Z"}],"euvd":[{"id":"EUVD-2020-29129","description":"Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys.","status":"published","published":"2020-11-16T00:36:43Z","modified":"2024-08-04T09:56:27Z","updated_at":"2026-11-03T03:07:57.599144Z"}],"ghsa":[{"id":"GHSA-548f-j4fj-64c5","title":"Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an...","description":"Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys.","status":"published","published":"2022-05-24T17:34:22Z","modified":"2023-01-27T05:07:29Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:43:07.808548Z"}],"nvd":[{"id":"CVE-2020-8259","description":"Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys.","status":"published","published":"2020-11-16T01:15:13.547Z","modified":"2026-06-17T03:26:08.963Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:06:24.137599Z"}],"osv":[{"id":"CVE-2020-8259","description":"Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys.","status":"published","published":"2020-11-16T01:15:13.547Z","modified":"2026-10-24T10:30:50.758401169Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:17.663289Z"}]}}