CVE-2026-107216— Excelize ANCHORARRAY: mutually-referencing array formulas recurse unboundedly via re-entrant CalcCellValue, causing a fatal stack overflow
Quick assessment
Affected
qax-os excelize
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Excelize 是一个用于读取和写入 Microsoft Excel 电子表格的 Go 语言库。在版本 2.8.1 至 2.11.0 中，ANCHORARRAY 会递归调用导出的 CalcCellValue 函数，在每次递归循环中创建新的计算上下文，从而绕过了正在进行的控制（in-flight）和迭代控制（iteration controls）。由于 ANCHORARRAY 调用的是 CalcCellValue 而非 cellResolver，每次递归调用都会获得一个新的 calcContext，导致循环状态（c
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
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I. Basic Information for CVE-2026-107216
Vulnerability Information
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Vulnerability Title
Excelize ANCHORARRAY: mutually-referencing array formulas recurse unboundedly via re-entrant CalcCellValue, causing a fatal stack overflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-107216
| # | POC Description | Source Link | Shenlong Link |
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Other References for CVE-2026-107216 (2)
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https://github.com/qax-os/excelize/security/advisories/GHSA-wp2g-vpjj-g53r x_refsource_CONFIRM
Same Patch Batch · qax-os · 2026-10-07 · 15 CVEs total
| CVE-2026-107211 | 8.7 HIGH | Excelize: Unchecked pivot-cache field index in extractPivotTableFields causes unrecoverabl |
| CVE-2026-107213 | 8.7 HIGH | Excelize: Nil-pointer dereference in GetSlicers when a worksheet has extLst present but no |
| CVE-2026-107212 | 7.5 HIGH | Excelize: Unbounded row number in Rows.Columns makes GetRows and the Rows iterator loop fo |
| CVE-2026-107214 | 7.5 HIGH | Excelize Decrypt: unrecoverable panics on malformed OLE/CFB encrypted workbooks |
| CVE-2026-107215 | 7.5 HIGH | Excelize: extractPart allocates attacker-controlled, unbounded and negative-sized buffers |
| CVE-2026-107217 | 7.5 HIGH | Excelize ColumnNameToNumber: int64 overflow yields an out-of-domain coordinate with nil er |
| CVE-2026-107219 | 7.5 HIGH | Excelize: Unbounded spinCount in agile decryption burns CPU during OpenFile |
| CVE-2026-107223 | 7.1 HIGH | Excelize: Unbounded <col max> attribute is loaded with no MaxColumns check and expanded pe |
| CVE-2026-107220 | 6.5 MEDIUM | Excelize: Panic in cellInRange on a worksheet with an empty mergeCell ref |
| CVE-2026-107221 | 6.5 MEDIUM | Excelize: a row whose earlier cell has a higher column reference than its last cell panics |
| CVE-2026-107222 | 6.5 MEDIUM | Excelize: GetConditionalFormats indexes conditional-formatting rule sub-elements with no l |
| CVE-2026-107225 | 6.5 MEDIUM | Excelize: GetStyle panics on a negative fillId, borderId or fontId in styles.xml |
| CVE-2026-107224 | 6.5 MEDIUM | Excelize: A Zip64 uncompressed-size of 2^63 panics OpenFile/OpenReader |
| CVE-2026-107218 | 5.3 MEDIUM | Excelize: RIGHT() on supplementary-plane text slices with a negative index and panics |
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V. Comments for CVE-2026-107216
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