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Advisory record · GHSA-fx5j-qcqg-grpf

Panic via negative shared-string index in github.com/xuri/excelize

CVSS 6.9 MediumEPSS 0.0066 · 51st percentile

Published by the GitHub Advisory Database at 16 Sept 2026, 18:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/xuri/excelize/v2Go<2.11.02.11.0
Identifiers
GHSA-fx5j-qcqg-grpf · CVE-2026-59162 · GO-2026-6452
Weakness (CWE)
CWE-248 · CWE-755
Tags
Published
16 Sept 2026
Updated
24 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Excelize (github.com/xuri/excelize/v2) versions before 2.11.0 panic when a spreadsheet cell contains a negative shared-string index. The shared-string lookup checks only the upper bound, so a negative index passes validation and causes an out-of-bounds access when cells are read through functions such as GetCellValue or GetRows. An attacker who can supply a spreadsheet for the application to parse can crash the process. Upgrade to version 2.11.0 or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.9 Medium 4.0 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 CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0066, the 51st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:13 UTC First seen by agentprime
  2. 31 Oct 2026, 14:13 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.