CVE-2026-59162 Details
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.
A vulnerability in the Excelize library, prior to version 2.11.0, allows for a negative shared-string index to cause a runtime panic when the cell value is accessed through the GetCellValue or GetRows functions. This issue arises because the library only checks the upper bound of the shared-string indices, allowing an index of -1 to be used, which triggers a panic. The vulnerability can be exploited by providing an XLSX file with a shared-string cell that contains a negative index.
Users can upgrade to Excelize version 2.11.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 10, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/qax-os/excelize/security/advisories/GHSA-fx5j-qcqg-grpf | CISA-ADP | ExploitVendor Advisory |
| https://github.com/qax-os/excelize/commit/93f0b3caed37f21ef5079e3259c6c21dcfe68453 | [email protected] | Patch |
| https://github.com/qax-os/excelize/pull/2331 | [email protected] | Issue TrackingPatch |
| https://github.com/qax-os/excelize/releases/tag/v2.11.0 | [email protected] | Release Notes |
| https://github.com/qax-os/excelize/security/advisories/GHSA-fx5j-qcqg-grpf | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-248 | Uncaught Exception | [email protected] |
| CWE-755 | Improper Handling of Exceptional Conditions | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| excelize excelize | < 2.11.0 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 16, 2026 | Initial Analysis | [email protected] |
| Jul 10, 2026 | CVE Modified | CISA-ADP |
| Jul 10, 2026 | New CVE Received | [email protected] |