CVE-2026-8358
Heap buffer overflow in spreadsheet tracked-changes import
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-843 CWE-787 |
| Vendor | the document foundation |
| Product | libreoffice |
| Published | Jun 15, 2026 |
| Last Updated | Jun 15, 2026 |
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Affected Versions
The Document Foundation / LibreOffice
26.2 < < 26.2.4
References
Credits
Anthropic (automated discovery using Claude) Arthur Chan of Ada Logics (validation and reporting)