CVE-2026-54063 Excelize: Unbounded Row Index Allocation in Worksheet Parser (checkSheet OOM/Panic DoS)

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, the checkSheet function in github.com/xuri/excelize/v2 uses an attacker-controlled XML attribute value directly as the length argument to makexlsxRow, row without validating it against the Exc...

CVE-2026-54063

Excelize CVE-2026-54063: The library vulnerable due to checkSheet() using attacker-controlled row attribute to allocate memory for xlsxRow slices without enforcing the Excel row limit. This can cause (A) out-of-memory leading to process kill and (B) runtime panic from out-of-bounds indexing when ...