CVE-2024-52514 Information

Description

Nextcloud Server is a self hosted personal cloud system. After a user received a share with some files inside being blocked by the files access control the user would still be able to copy the intermediate folder inside Nextcloud allowing them to afterwards potentially access the blocked files depending on the user access control rules. It is recommended that the Nextcloud Server is upgraded to 27.1.9 28.0.5 or 29.0.0 and Nextcloud Enterprise Server is upgraded to 21.0.9.18 22.2.10.23 23.0.12.18 24.0.12.14 25.0.13.9 26.0.13.3 27.1.9 28.0.5 or 29.0.0.

Reference

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g8pr-g25r-58xj https://github.com/nextcloud/server/pull/44889 https://github.com/nextcloud/server/commit/5fffbcfe8650eab75b00e8d188fbc95b0e43f3a8 https://hackerone.com/reports/2447316