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.
CVE-2026-59162
MEDIUMPre-NVD 6.96.9Elevated
EchelonGraph scoreLOW confidence
This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
6.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: —CVSS: 6.9Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.9
- EG Score
- 6.9(low)
- EPSS
- —
- KEV
- Not listed
Published
July 10, 2026
Last Modified
July 10, 2026
Advisory Details (4)
Auto-updated Jul 10, 2026Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available
Negative shared-string index causes panic in GetCellValue and GetRows · Advisory · qax-os/excelize · GitHub
https://github.com/qax-os/excelize/security/advisories/GHSA-fx5j-qcqg-grpfgithub_release Patch Available
v2.11.0
Patch available: qax-os/excelize v2.11.0
https://github.com/qax-os/excelize/releases/tag/v2.11.0github_pr Patch Available
This fixes security advisories GHSA-q5j5-6p94-4gwc and GHSA-fx5j-qcqg-grpf
Patch available: qax-os/excelize v2.11.0 (PR #2331 merged 2026-06-21)
https://github.com/qax-os/excelize/pull/2331github_commit Patch Available
commit 93f0b3caed37 (qax-os/excelize)
Patch available: qax-os/excelize v2.11.0 (contains commit 93f0b3caed37)
https://github.com/qax-os/excelize/commit/93f0b3caed37f21ef5079e3259c6c21dcfe68453Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 3× in last 7d / 3× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 16:42 UTCEG score recompute
- 2026-07-10 16:33 UTCEG score recompute
- 2026-07-10 16:32 UTCMITRE cvelistV5first tracked
Frequently asked(4)
What is CVE-2026-59162?
CVE-2026-59162 is a medium vulnerability published on July 10, 2026. 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…
When was CVE-2026-59162 disclosed?
CVE-2026-59162 was first published in the National Vulnerability Database on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-59162?
CVE-2026-59162 has a CVSS v3 base score of 6.9 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-59162?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59162, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-59162
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