CVE-2026-45154

LOW

Nextcloud: Improper Access Control in Collectives

Title source: cna
STIX 2.1

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.

References (3)

Core 3
Core References
X_Refsource_Misc x_refsource_misc
https://github.com/nextcloud/collectives/pull/2432
X_Refsource_Misc x_refsource_misc
https://hackerone.com/reports/3521434

Scores

CVSS v3 2.6
EPSS 0.0019
EPSS Percentile 8.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

Details

CWE
CWE-284
Status published
Products (1)
nextcloud/security-advisories >= 2.6.0, < 4.3.0
Published Jun 01, 2026
Tracked Since Jun 01, 2026