Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets.
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.1.0 to 2.11.0, flatCols expands file-loaded column ranges without validating Min and Max against the worksheet column limit. SetColWidth reaches flatCols, which expands xlsxCol.Min through xlsxCol.Max without enforcing MaxColumns. When a crafted worksheet supplies an oversized col max attribute and the application invokes a column mutator, flatCols performs a deep copy and append for every attacker-selected column number, allowing an attacker to consume excessive CPU and memory or trigger OOM. No fix
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Microsoft
- Product
- Microsoft 365 / Office
- Fix
- not yet available
- Exposure class
- Collaboration
Why it ranks 11 (Routine)
- Product class: collaboration
- Widely deployed vendor product (Microsoft)
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-107223 on this site · NVD · CVE.org · Vulnpedia
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