CVE-2026-107225
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets.
Impact
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.8.0 to 2.11.0, GetStyle's fill, border, and font extraction predicates check only upper bounds for attacker-controlled style-table indices. File.GetStyle relies on extractStyleCondFuncs predicates that allow negative FillID, BorderID, and FontID values to reach slice indexing. When a crafted styles.xml supplies a negative fillId, borderId, or fontId and the application reads the style, a negative identifier passes the upper-bound-only predicate and becomes a negative slice index, allowing an attacker to panic while reading cell styling. No fixed version is available as of this review.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/xuri/excelize/v2 | >= 2.8.0, < 2.11.1-0.20260731010303-ae2113b410e5 | 2.11.1-0.20260731010303-ae2113b410e5 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Excelize | Excelize | from 2.8.0 through 2.11.0 |