CVE-2026-45154

Nextcloud Collectives vulnerability: from version 2.6.0 through before 4.3.0, if a collective page was deleted and the collective was shared view‑only, guests with access could directly retrieve the deleted pages from the trashbin. Root cause: improper access control. A fix is available in versio...

NextCloud Collectives Access Control Vulnerability

NextCloud Collectives is an open-source collaboration and knowledge management tool developed by NextCloud. In versions 2.6.0 to 4.3.0 of NextCloud Collectives, there was a security vulnerability related to access control. This vulnerability stemmed from a lack of permission checks, which could...

Nextcloud: Public collectives allow to create pages

A vulnerability was discovered in the Nextcloud Collectives application that allowed non-members accessing a public collective to create new pages through the backend API, bypassing the collective-level permission settings configured to restrict editing to administrators only. The vulnerability w...