[ CVE-2026-107216 · Published 7 Oct 2026 ]
Excelize ANCHORARRAY: mutually-referencing array formulas recurse unboundedly via re-entrant CalcCellValue, causing a fatal stack overflow
[ Description ]Official 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.
[ Fixes ]Fixes and patches
- github.com/xuri/excelize/v2 2.11.1-0.20260911060113-ea12859e43c6Fixed version · GitHub Advisories · go package github.com/xuri/excelize/v2: upgrade to 2.11.1-0.20260911060113-ea12859e43c6 or later (affected >= 2.8.1, < 2.11.1-0.20260911060113-ea12859e43c6)
- Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ Packages ]Affected open-source packages
- github.com/xuri/excelize/v2 goAffected >= 2.8.1, < 2.11.1-0.20260911060113-ea12859e43c6 · fixed in 2.11.1-0.20260911060113-ea12859e43c6 · GHSA-wp2g-vpjj-g53r