CVE-2026-59162

Excelize: Negative shared-string index causes panic in GetCellValue and GetRows

HIGH
7.5
CVSS Score
Published: July 10, 2026 at 03:51 PM UTC
Updated: October 25, 2026 at 03:10 PM UTC
2 products affected across 2 vendorsExcelizeExcelize

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.11.0
Affected range stops below 2.11.0, so it looks safe — our inference, not a vendor statement
v < 2.11.0
Affected range stops below 2.11.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/qax-os/excelize/security/advisories/GHSA-fx5j-qcqg-grpf
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/qax-os/excelize/pull/2331
x_refsource_MISCRelease Notes
Source: cverecord
https://github.com/qax-os/excelize/releases/tag/v2.11.0

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-248CWE-755

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