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CVE-2026-59162— Excelize: Negative shared-string index causes panic in GetCellValue and GetRows

Quick assessment

Affected
qax-os excelize
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

QiAnXin Excelize是中国QiAnXin公司开源的一款Go语言编写的Excel文件读写库。 QiAnXin Excelize 2.11.0之前版本存在异常处理不当漏洞，该漏洞源于解析共享字符串单元格值时仅检查上限，允许包含-1的XLSX文件触发panic。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.66% · P50

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 1

VendorProduct Version RangeStatus
qax-os excelize < 2.11.0 affected
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I. Basic Information for CVE-2026-59162

Vulnerability Information
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Vulnerability Title
Excelize: Negative shared-string index causes panic in GetCellValue and GetRows
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未捕获的异常
Source: CVE Program / CVE List V5
Vulnerability Title
QiAnXin Excelize 异常处理不当漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QiAnXin Excelize是中国QiAnXin公司开源的一款Go语言编写的Excel文件读写库。 QiAnXin Excelize 2.11.0之前版本存在异常处理不当漏洞，该漏洞源于解析共享字符串单元格值时仅检查上限，允许包含-1的XLSX文件触发panic。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
qax-os excelize < 2.11.0 -

II. Public POCs for CVE-2026-59162

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III. Intelligence Information for CVE-2026-59162

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Patches & Fixes for CVE-2026-59162 (2)

Vendor Advisories for CVE-2026-59162 (1)

Vendor Pages for CVE-2026-59162 (1)

Same Patch Batch · qax-os · 2026-07-10 · 3 CVEs total

CVE-2026-54063 7.5 HIGH Excelize: Unbounded Row Index Allocation in Worksheet Parser (checkSheet OOM/Panic DoS)
CVE-2026-59161 Excelize: Streaming GetRows row-bound bypass causes attacker-controlled allocation

IV. Related Vulnerabilities

Same product: excelize
Same vendor: qax-os
Same weakness: CWE-248

V. Comments for CVE-2026-59162

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