Description
URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links. The check added for CVE-2024-12426 did not cover every place a document can supply a URL. XForms instance data and the Calc csv and sql data providers still reached the expansion. In fixed versions these places refuse URLs with internal schemes when the URL comes from the document.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The Document Foundation | LibreOffice | 26.2 – < < 26.2.5 | < 26.2.5 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libreoffice | 4:26.2.5.2-1 | — |
| Debian 13 | libreoffice | 4:25.2.3-2+deb13u8 | — |
| Debian 12 | libreoffice | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libreoffice | No fix yet | — |
| Ubuntu 26.04 LTS | libreoffice | No fix yet | — |
| Ubuntu 24.04 LTS | libreoffice | No fix yet | — |
| Ubuntu 22.04 LTS | libreoffice | No fix yet | — |
| Ubuntu 20.04 LTS | libreoffice | No fix yet | — |
Advisories 1
- WID-SEC-2026-3738 LibreOffice: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026