CVE-2026-107222 — Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets.
Description
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.
CVSS v3.1 base metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HMedium severity
Band computed from the CVSS base score, not the source's own label — so it means the same thing across every feed.
AV
Network
Attack Vector
AC
Low
Attack Complexity
PR
None
Privileges Required
UI
Required
User Interaction
S
Unchanged
Scope
C
None
Confidentiality
I
None
Integrity
A
High
Availability
Affected
- Vendor
- Go
- Product
- github.com/xuri/excelize/v2
Versions
- pkg:golang/github.com/xuri/excelize/v2 >= 2.7.0, < 2.11.1-0.20260812075026-be7a16390fa6
Stated as the source expressed them.
References
- advisory[email protected]https://github.com/qax-os/excelize/commit/be7a16390fa69c71d3ca618c741d1a2b5ed362cd
- advisory[email protected]https://github.com/qax-os/excelize/pull/2375
- advisory134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/qax-os/excelize/security/advisories/GHSA-rxcj-4pj5-74gr
- advisoryOSV GHSA-rxcj-4pj5-74grhttps://osv.dev/vulnerability/GHSA-rxcj-4pj5-74gr
- vendorOSV packagehttps://github.com/qax-os/excelize
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