LibreOffice Calc can import tracked changes from a spreadsheet document. A heap buffer overflow existed when a document reused the same change identifier for two different kinds of change. The importer then treated one change object as a different, larger type and wrote past the end of its allocation. In fixed versions records with a duplicate identifier are rejected.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade libreoffice | Jun 18, 2026 | Jun 18, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Jun 15, 2026 |
| Ubuntu | — | Upgrade libreoffice | Jul 14, 2026 | Jul 13, 2026 |
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