CVE-2026-107221 Excelize: a row whose earlier cell has a higher column reference than its last cell panics index out of range on almost every worksheet read API

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.0.0 to 2.11.0, checkRow sizes its target cell slice from the last cell in XML document order and then re-scatters every cell by its explicit column reference. GetCellValue reaches workSheetReader and...

CVE-2026-107221

The Excelize Go library (versions 2.0.0 to 2.11.0 ) is vulnerable to an out-of-bounds write (CWE-787) during non-streaming worksheet read operations. The root cause lies in the checkRow function, which incorrectly sizes a target cell slice based on the last cell in XML document order. If a crafte...