libreoffice: LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document
CVE-2026-63266 is fixed in libreoffice on 1 platform, first by DEBIAN-CVE-2026-63266, released October 5, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libreoffice · Debian 13.5 (trixie) | 4:25.2.3-2+deb13u8 | DEBIAN-CVE-2026-63266 | Oct 5, 2026 |
| libreoffice · Debian 14 | 4:26.2.5.2-1 | DEBIAN-CVE-2026-63266 | Oct 5, 2026 |
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