CVE-2020-8227: Nextcloud Desktop

Medium severity, CVSS 6.8. EPSS: 25.8% chance of exploitation in the next 30 days.

Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory.

Affected products

• Nextcloud Desktop: before 2.6.5 (fixed in 2.6.5)

Published 2020-08-21. Last modified 2026-06-17.