CVE-2024-22401: Nextcloud Guests

Medium severity, CVSS 4.3. EPSS: 0.5% chance of exploitation in the next 30 days.

Nextcloud guests app is a utility to create guest users which can only see files shared with them. In affected versions users could change the allowed list of apps, allowing them to use apps that were not intended to be used. It is recommended that the Guests app is upgraded to 2.4.1, 2.5.1 or 3.0.1. There are no known workarounds for this vulnerability.

Affected products

• Nextcloud Guests: before 2.4.1 (fixed in 2.4.1); version 2.5.0 only; version 3.0.0 only

Published 2024-01-18. Last modified 2026-06-17.