CVE-2026-63266
Medium
Description
LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. Through such a link a document could open an embedded Firebird database that wrote a file to any location the user could write to. In fixed versions an embedded Firebird database can open or create files only inside its own private directory.
SeverityMedium
CVSS6.8
Exploit probability—
ProductLibreOffice
PublishedOct 5, 2026
First seenOct 5, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- The Document Foundation LibreOffice< 26.2.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| The Document Foundation LibreOffice | 26.2 ≤ v < < 26.2.5 | < 26.2.5 |
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