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Vulnerability record · CVE-2026-59162 · published 10 July 2026

CVE-2026-59162: Excelize vulnerability

Excelize · Excelize

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.

6.9 CVSS 4.0 Medium EPSS 0.66% · top 50.7% CWE-248 · CWE-248CWE-755 · CWE-755
6.9CVSS 4.0 base score
0.66%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 2 tagged exploit
16 Jul 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/qax-os/excelize/commit/93f0b3caed37f21ef5079e3259c6c21dcfe68453 Patch
https://github.com/qax-os/excelize/pull/2331 Issue TrackingPatch
https://github.com/qax-os/excelize/releases/tag/v2.11.0 Release Notes
https://github.com/qax-os/excelize/security/advisories/GHSA-fx5j-qcqg-grpf ExploitVendor Advisory
https://github.com/qax-os/excelize/security/advisories/GHSA-fx5j-qcqg-grpf ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.7CVE-2026-59161Excelize uncontrolled resource consumption vulnerabilityExcelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, the streaming worksheet reader used by Rows …EPSS 0.66%7.5CVE-2026-54063Excelize allocation without limits vulnerabilityExcelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, the checkSheet() function in github.com/xuri…EPSS 0.61%

Source: NIST National Vulnerability Database (record CVE-2026-59162), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.