CVE-2023-32319: Nextcloud Server

Medium severity, CVSS 6.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Nextcloud server is an open source personal cloud implementation. Missing brute-force protection on the WebDAV endpoints via the basic auth header allowed to brute-force user credentials when the provided user name was not an email address. Users from version 24.0.0 onward are affected. This issue has been addressed in releases 24.0.11, 25.0.5 and 26.0.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

• Nextcloud Nextcloud Server: from 24.0.0, before 24.0.11 (fixed in 24.0.11); from 25.0.0, before 25.0.5 (fixed in 25.0.5)

Published 2023-05-26. Last modified 2026-06-17.