CVE-2026-45154Nextcloud: Improper Access Control in Collectives

Description

Nextcloud is an open source content collaboration platform. From version 2.6.0 to before version 4.3.0, when a previous collective pages was deleted and the collective was shared view-only, guests with access to the collective were able to access the deleted pages directly from the trashbin. This issue has been patched in version 4.3.0.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8mpv-ggq8-hf3w
• https://github.com/nextcloud/collectives/pull/2432
• https://hackerone.com/reports/3521434