CVE-2024-52516: Nextcloud Server

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Nextcloud Server is a self hosted personal cloud system. When a server is configured to only allow sharing with users that are in ones own groups, after a user was removed from a group, previously shared items were not unshared. It is recommended that the Nextcloud Server is upgraded to 22.2.11 or 23.0.11 or 24.0.6 and Nextcloud Enterprise Server is upgraded to 22.2.11 or 23.0.11 or 24.0.6.

Affected products

• Nextcloud Nextcloud Server: from 26.0.0, before 26.0.13.9 (fixed in 26.0.13.9); from 27.0.0, before 27.1.11.9 (fixed in 27.1.11.9); from 28.0.0, before 28.0.9 (fixed in 28.0.9); from 29.0.0, before 29.0.5 (fixed in 29.0.5)

Published 2024-11-15. Last modified 2026-06-17.