CVE-2021-22906
Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users.
Date published : 2021-06-11
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3829-45wm-ww36