---
id: CVE-2026-107225
title: >-
  Excelize is a Go language library for reading and writing Microsoft Excel
  spreadsheets
summary: >-
  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. Fi…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-20
  - CWE-129
vendor: xuri
product: github.com/xuri/excelize/v2
affected:
  - 'github.com/xuri/excelize/v2 >= 2.8.0, < 2.11.1-0.20260731010303-ae2113b410e5'
patched:
  - github.com/xuri/excelize/v2 2.11.1-0.20260731010303-ae2113b410e5
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T19:17:35.333'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107225'
references:
  - url: >-
      https://github.com/qax-os/excelize/commit/ae2113b410e51f6a141c396a59eda8c42b91bc22
    label: security-advisories@github.com
  - url: 'https://github.com/qax-os/excelize/pull/2367'
    label: security-advisories@github.com
  - url: 'https://github.com/qax-os/excelize/security/advisories/GHSA-5h23-36rv-pm65'
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-5h23-36rv-pm65'
tags:
  - nvd
  - ghsa
  - go
  - cve.org
aliases:
  - GHSA-5h23-36rv-pm65
ecosystem: go
ingestedAt: '2026-10-07T20:46:46.977Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-107225)

Affected packages:

- `github.com/xuri/excelize/v2 >= 2.8.0, < 2.11.1-0.20260731010303-ae2113b410e5`

Patched in:

- `github.com/xuri/excelize/v2 2.11.1-0.20260731010303-ae2113b410e5`

Source: https://github.com/advisories/GHSA-5h23-36rv-pm65