CVE-2026-107217High· 7.5▾ MidnightPoC availableExcelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.0.0 to 2.11.0 in github.com/xuri/excelize/v2 and from 1.1.0 to 1.4.1 in github.com/xuri/excelize, ColumnNameToNumber accumulates a bijective b…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 41.3 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
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 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Exploit / PoC code exists
Last analysed / modified upstream
0.3% → 0.4%
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.0.0 to 2.11.0 in github.com/xuri/excelize/v2 and from 1.1.0 to 1.4.1 in github.com/xuri/excelize, ColumnNameToNumber accumulates a bijective base-26 value in int64 without detecting overflow, allowing an invalid long column name to wrap to zero with no error. ColumnNameToNumber accepts the overflowing name VGWQHXLSDVIKWV, after which checkSheetR0 and xlsxWorksheet.checkRow use the wrapped column value as an index. When a crafted worksheet uses an overflowing column name in a row normalized by checkSheetR0 or checkRow, the wrapped zero column becomes a negative slice index during worksheet normalization, allowing an attacker to panic and terminate the calling process. No fixed version is available as of this review.
excelize >= 1.1.0, <= 1.4.1excelize >= 2.0.0, <= 2.11.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/xuri/excelize/v2 >= 2.0.0, < 2.11.1-0.20260910071107-696050fbf14egithub.com/xuri/excelize >= 1.1.0, <= 1.4.1Patched in:
github.com/xuri/excelize/v2 2.11.1-0.20260910071107-696050fbf14eField changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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