Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 31.0.1, non-privileged users can modify tags on files they should not have access to via bulk tagging. This vulnerability is fixed in 31.0.1.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hq6c-r898-fgf2 Patch, Vendor Advisory
- https://github.com/nextcloud/server/commit/b44f1568f2dc97c746281d99e2342ad679e3d8a9 Patch
- https://hackerone.com/reports/3040887 Permissions Required, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 4.3 · nextcloudNVD modified 2026-10-18 14:10
Affected (CPE criteria) 2
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*
References 5
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hq6c-r898-fgf2 Patch, Vendor Advisory
- https://github.com/nextcloud/server/commit/b44f1568f2dc97c746281d99e2342ad679e3d8a9 Patch
- https://github.com/nextcloud/server/issues/51247 Issue Tracking
- https://github.com/nextcloud/server/pull/51288 Issue Tracking
- https://hackerone.com/reports/3040887 Permissions Required, Vendor Advisory