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OpenAdvisories
High · 7.5 CVE-2026-107216 EUVD-2026-94534GHSA-wp2g-vpjj-g53rGO-2026-6688

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

Published Oct 7, 2026 · Updated Oct 7, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
qax-os excelize >= 2.8.1, <= 2.11.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/xuri/excelize/v2 >= 2.8.1, < 2.11.1-0.20260911060113-ea12859e43c6 2.11.1-0.20260911060113-ea12859e43c6 GHSA-wp2g-vpjj-g53r

References