Description
When a team was configured as "visible to everyone", the web UI correctly blocked non-members from viewing the team ("You are not a member of ..."), but the resources API endpoint could still be called directly, allowing any authenticated non-member to enumerate the team's internal resources and their identifiers.
This does not grant access to the contents of the discovered resources themselves, only their existence, names, and identifiers.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Nextcloud | Server | 32.0.0 – ≤ 33.0.0 | — |
Advisories 1
- WID-SEC-2026-4185 Nextcloud (Server, Tables, Whiteboard, Files Confidential, Collectives, Richdocuments): Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 27, 2026