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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-45543

Nextcloud: Deleting a Forms collaborator share leaves uploaded response files accessible through a lingering Files share

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nextcloud security-advisories

  • >= 4.3.0, < 5.2.7affected

References