CVE-2026-45543

Summary

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 Software

VendorProductVersion RangeStatus
nextcloudsecurity-advisories>= 4.3.0, < 5.2.7affected

Weaknesses

  • CWE-552: CWE-552: Files or Directories Accessible to External Parties

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References