CVE-2017-0885: Nextcloud Server

Medium severity, CVSS 4.3. EPSS: 0.9% chance of exploitation in the next 30 days.

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.

Affected products

• Nextcloud Nextcloud Server: before 9.0.55 (fixed in 9.0.55); from 10.0.0, before 10.0.2 (fixed in 10.0.2)

Published 2017-04-05. Last modified 2026-06-17.