CVE-2023-48305: Nextcloud Server

Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days.

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Server and Nextcloud Enterprise Server, when the log level was set to debug, the user_ldap app logged user passwords in plaintext into the log file. If the log file was then leaked or shared in any way the users' passwords would be leaked. Nextcloud Server and Nextcloud Enterprise Server versions 25.0.11, 26.0.6, and 27.1.0 contain a patch for this issue. As a workaround, change config setting `loglevel` to `1` or higher (should always be higher than 1 in production environments).

Affected products

• Nextcloud Nextcloud Server: from 25.0.0, before 25.0.11 (fixed in 25.0.11); from 26.0.0, before 26.0.6 (fixed in 26.0.6); from 27.0.0, before 27.1.0 (fixed in 27.1.0)

Published 2023-11-21. Last modified 2026-06-17.