Answer in brief
CVE-2026-107222 records a Medium severity (CVSS 6.5) vulnerability in Excelize: GetConditionalFormats indexes conditional-formatting rule sub-elements with no length or nil check. The current sources do not mark it as known exploited. The current feed maps qax-os/excelize (generic), github.com/xuri/excelize/v2 (go). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps qax-os/excelize (generic), github.com/xuri/excelize/v2 (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| qax-os/excelizegeneric | >=2.7.0 <=2.11.0 | Not reported |
| github.com/xuri/excelize/v2go | >=2.7.0,<2.11.1-0.20260812075026-be7a16390fa6 | 2.11.1-0.20260812075026-be7a16390fa6 |
Published upstream
Oct 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 7, 2026
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.7.0 to 2.11.0, conditional-format extraction indexes required child slices or dereferences an optional colorScale child without validating malformed rule structure. GetConditionalFormats reaches extractCondFmtCellIs and also indexes ColorScale.Cfvo, DataBar.Cfvo, and DataBar.Color without complete structural checks. When a crafted worksheet supplies a cellIs, dataBar, or colorScale rule missing expected children and the application calls GetConditionalFormats, missing formula, color, value-object, or colorScale data reaches an out-of-range index or nil dereference, allowing an attacker to panic and terminate an unprotected process. No fixed version is available as of this review.
Quoted source text, attributed separately from HOL analysis.