CVE-2024-52525: Nextcloud Server

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Nextcloud Server is a self hosted personal cloud system. Under certain conditions the password of a user was stored unencrypted in the session data. The session data is encrypted before being saved in the session storage (Redis or disk), but it would allow a malicious process that gains access to the memory of the PHP process, to get access to the cleartext password of the user. It is recommended that the Nextcloud Server is upgraded to 28.0.12, 29.0.9 or 30.0.2.

Affected products

• Nextcloud Nextcloud Server: from 28.0.0, before 28.0.12 (fixed in 28.0.12); from 29.0.0, before 29.0.9 (fixed in 29.0.9); from 30.0.0, before 30.0.2 (fixed in 30.0.2)

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