Medium severity6.5NVD Advisory· Published Aug 10, 2023· Updated Jun 17, 2026
CVE-2023-39952
CVE-2023-39952
Description
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.4, 25.0.8, 26.0.3, and 27.0.1, a user can access files inside a subfolder of a groupfolder accessible to them, even if advanced permissions would block access to the subfolder. Nextcloud Server versions 25.0.8, 26.0.3, and 27.0.1 and Nextcloud Enterprise Server versions 22.2.10.13, 23.0.12.8, 24.0.12.4, 25.0.8, 26.0.3, and 27.0.1 contain a patch for this issue. No known workarounds are available.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*+ 4 more
- cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*range: >=25.0.0,<25.0.8
- cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*range: >=22.0.0,<22.2.10.13
- cpe:2.3:a:nextcloud:nextcloud_server:27.0.0:*:*:*:-:*:*:*
- cpe:2.3:a:nextcloud:nextcloud_server:27.0.0:*:*:*:enterprise:*:*:*
- (no CPE)range: 22.0.0 - 22.2.10.13, 23.0.12.8, 24.0.12.4, 25.0.8, 26.0.3, 27.0.1
- Range: >= 22.0.0, < 22.2.10.13
Patches
Vulnerability mechanics
References
4- github.com/nextcloud/security-advisories/security/advisories/GHSA-cq8w-v4fh-4rjqnvdPatchVendor Advisory
- github.com/nextcloud/server/pull/38890nvdPatch
- github.com/nextcloud/groupfolders/issues/1906nvdIssue TrackingThird Party Advisory
- hackerone.com/reports/1808079nvdPermissions Required
News mentions
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