Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-107216

CVE-2026-107216HIGH

qax-os excelize — Excelize ANCHORARRAY: mutually-referencing array formulas recurse unboundedly via re-entrant CalcCellValue, causing a fatal stack overflow

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  N  N  H    7.5   .0033   24.5     —

AFFECTED
  Product   Versions               Fixed
  excelize  >= 2.8.1, <= 2.11.0 –  —

TIMELINE
  Oct 7   Reserved by GitHub_M
  Oct 7   Published (CNA: GitHub_M)
  Oct 13  EXPLOIT PUBLISHED — CVE-2026-107216 (qax-os excelize). Public exploit reference added.

CWE-674 · CNA: GitHub_M · CVSS v3.1 · 2 references · NVD status: Analyzed

Description

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.8.1 to 2.11.0, ANCHORARRAY recursively calls the exported CalcCellValue function, creating a fresh calculation context at each cycle and bypassing in-flight and iteration controls. ANCHORARRAY calls CalcCellValue instead of cellResolver, so each recursive hop receives a new calcContext and loses cycle state. When mutually referencing dynamic-array formulas are evaluated directly or through formula-evaluating APIs, each recursion hop resets the cycle budget and prevents completion-based caches from breaking the cycle, allowing an attacker to cause a fatal Go stack overflow and abort the process. No fixed version is available as of this review.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
October 7, 2026	Reserved	Reserved by GitHub_M
October 7, 2026	Published	Published (CNA: GitHub_M)
October 13, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-107216 (qax-os excelize). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
qax-os	excelize	—	>= 2.8.1, <= 2.11.0	—

Weaknesses

CWE-674

References (2)

https://github.com/qax-os/excelize/commit/ea12859e43c64d498ecf839263c5f917391f3316 [Patch]
https://github.com/qax-os/excelize/security/advisories/GHSA-wp2g-vpjj-g53r [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-107216 at cve.org

Vendors: qax-os

Weaknesses: CWE-674

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-107216 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.