---
id: CVE-2026-107212
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 2.1.0 to 2.11.0, Rows.Columns accepts a look-ahead row
  number above TotalRows without applying the limit enforced by Rows.Next.
  File.GetRows rel…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-770
vendor: qax-os
product: excelize
affected:
  - 'excelize >= 2.1.0, <= 2.11.0'
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T18:17:18.670'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107212'
references:
  - url: >-
      https://github.com/qax-os/excelize/commit/01a9ff32fb3c1f873cf01205e1b8a3285b0e1d23
    label: security-advisories@github.com
  - url: 'https://github.com/qax-os/excelize/pull/2438'
    label: security-advisories@github.com
  - url: 'https://github.com/qax-os/excelize/security/advisories/GHSA-jw42-f3rr-4cc3'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-07T17:56:16.346533Z'
ingestedAt: '2026-10-07T18:42:20.890Z'
---

## Overview

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.1.0 to 2.11.0, Rows.Columns accepts a look-ahead row number above TotalRows without applying the limit enforced by Rows.Next. File.GetRows relies on Rows.Next and Rows.Columns, but Rows.Columns consumes the row r attribute without the limit check in Rows.Next. When a crafted worksheet places an oversized row number after an ordinary valid row and the application calls GetRows or iterates Rows, the iterator advances through every missing row number instead of rejecting the workbook, allowing an attacker to consume a CPU core for an attacker-controlled duration. No fixed version is available as of this review.

## Remediation

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