CVE-2026-63268: The Document Foundation Libreoffice

Medium severity, CVSS 6.7. EPSS: 0.1% chance of exploitation in the next 30 days.

LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. A link of the sql type could name a folder of local text files as a database, so opening a document could read a local text file into the sheet. In fixed versions only the csv, html and xml data providers are restored when a document is loaded.

Affected products

• The Document Foundation Libreoffice: from 26.2, before 26.2.5 (fixed in 26.2.5)

Published 2026-10-05. Last modified 2026-10-06.