CVE-2026-59162: Excelize

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, Excelize parses shared-string cell values with strconv.Atoi and checks only the upper bound before indexing the shared string slice, allowing an XLSX file containing a shared-string cell with -1 to trigger sharedStrings[-1] and panic when read through GetCellValue or GetRows. This issue is fixed in version 2.11.0.

Affected products

• Excelize Excelize: before 2.11.0 (fixed in 2.11.0)

Published 2026-07-10. Last modified 2026-07-16.