CVE-2026-59161

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 59% of all CVEs by exploit prediction. 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: epss, secondary
Trending — 3 sources updated this week
8.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.7Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, the streaming worksheet reader used by Rows and GetRows does not enforce the TotalRows limit on the row r attribute, allowing a small XLSX file with a row number above 1048576 and no cell coordinate to make GetRows append empty rows up to the attacker-controlled index and consume excessive memory and CPU. This issue is fixed in version 2.11.0.

CVSS v3
8.7
EG Score
8.7(medium)
EPSS
40.7%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 10, 2026

Advisory Details (4)

Auto-updated Jul 10, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available🟡 PoC Available

Streaming GetRows row-bound bypass causes attacker-controlled allocation · Advisory · qax-os/excelize · GitHub

https://github.com/qax-os/excelize/security/advisories/GHSA-q5j5-6p94-4gwc
github_release Patch Available

v2.11.0

Patch available: qax-os/excelize v2.11.0

https://github.com/qax-os/excelize/releases/tag/v2.11.0
github_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/2331
github_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/93f0b3caed37f21ef5079e3259c6c21dcfe68453

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 10× 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.

  1. 2026-07-13 06:13 UTCEPSS rescore
  2. 2026-07-13 06:13 UTCEPSS rescore
  3. 2026-07-13 04:50 UTCEG score recompute
  4. 2026-07-12 16:47 UTCEG score recompute
  5. 2026-07-12 05:46 UTCEPSS rescore
  6. 2026-07-12 04:43 UTCEG score recompute
  7. 2026-07-11 16:40 UTCEG score recompute
  8. 2026-07-11 04:37 UTCEG score recompute
  9. 2026-07-10 16:33 UTCEG score recompute
  10. 2026-07-10 16:32 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59161?
CVE-2026-59161 is a high vulnerability published on July 10, 2026. Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, the streaming worksheet reader used by Rows and GetRows does not enforce the TotalRows limit on the row r attribute, allowing a small XLSX file with a row number above 1048576 and no cell…
When was CVE-2026-59161 disclosed?
CVE-2026-59161 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.
Is CVE-2026-59161 actively exploited?
CVE-2026-59161 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-59161?
CVE-2026-59161 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-59161?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59161, 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

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