CVE-2026-45543 — Nextcloud: Deleting a Forms collaborator share leaves uploaded response files accessible through a lingering Files share
Nextcloud is an open source content collaboration platform. From version 4.3.0 to before version 5.2.7, a removed collaborator retains unauthorized read access to uploaded respo…
Published: 2026-06-01 · CVSS: 5.3 · CVSS 3.1
Nextcloud is an open source content collaboration platform. From version 4.3.0 to before version 5.2.7, a removed collaborator retains unauthorized read access to uploaded respondent files for the affected form. The scope is limited to uploaded files for forms where that user previously had results access. This issue has been patched in version 5.2.7.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7