Nextcloud Server before 9.0.55 and 10.0.2 suffers from a error message disclosing existence of file in write-only share. Due to an error in the application logic an adversary with access to a write-only share may enumerate the names of existing files and subfolders by comparing the exception messages.
| Software | From | Fixed in |
|---|---|---|
| nextcloud / nextcloud_server | 10.0.0 | 10.0.2 |
| nextcloud / nextcloud_server | - | 9.0.55 |