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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-23623

Collabora Online vulnerable to Authorization Bypass

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Collabora Online is a collaborative online office suite based on LibreOffice technology. Prior to Collabora Online Development Edition version 25.04.08.2 and prior to Collabora Online versions 23.05.20.1, 24.04.17.3, and 25.04.7.5, a user with view-only rights and no download privileges can obtain a local copy of a shared file. Although there are no corresponding buttons in the interface, pressing Ctrl+Shift+S initiates the file download process. This allows the user to bypass the access restrictions and leads to unauthorized data retrieval. This issue has been patched in Collabora Online Development Edition version 25.04.08.2 and Collabora Online versions 23.05.20.1, 24.04.17.3, and 25.04.7.5.

Affected products

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

CollaboraOnline online

  • Collabora Online < 25.04.7.5affected
  • Collabora Online < 24.04.17.3affected
  • Collabora Online < 23.05.20.1affected
  • Collabora Online Development Edition < 25.04.08.2affected

References