CVE-2026-107223High· 7.5▾ TwilightExcelize 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 reach…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 9.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
7.1 → 7.5
0.3% → 0.4%
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 fixed version is available as of this review.
excelize >= 2.1.0, <= 2.11.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/xuri/excelize/v2 >= 2.1.0, < 2.11.1-0.20260807015645-a54c578af309Patched in:
github.com/xuri/excelize/v2 2.11.1-0.20260807015645-a54c578af309Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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