CVE-2026-59162 | THREATINT

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.

PUBLISHED Reserved 2026-07-02 | Published 2026-07-10 | Updated 2026-07-10 | Assigner GitHub_M

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Problem types

CWE-248: Uncaught Exception

CWE-755: Improper Handling of Exceptional Conditions

Product status

< 2.11.0

affected

References

github.com/...celize/security/advisories/GHSA-fx5j-qcqg-grpf exploit

github.com/...celize/security/advisories/GHSA-fx5j-qcqg-grpf

github.com/qax-os/excelize/pull/2331

github.com/...ommit/93f0b3caed37f21ef5079e3259c6c21dcfe68453

github.com/qax-os/excelize/releases/tag/v2.11.0

cve.org (CVE-2026-59162)

nvd.nist.gov (CVE-2026-59162)

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