CVE-2026-8357

Name of the Vulnerable Software and Affected Versions LibreOffice Calc (affected versions not specified)

Description A heap buffer overflow occurs during the compilation of cell formulas when opening a spreadsheet. This issue is triggered by very long formulas containing numerous opening tokens. The array used to track nesting depth is allocated with one element too few for the worst-case scenario, causing the formula to write one element beyond the array boundary.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.