CVE-2026-107217: excelize >= 2.0.0, <= 2.11.0, >= 1.1.0, <= 1.4.1

Affected technology

excelize · >= 2.0.0, <= 2.11.0, >= 1.1.0, <= 1.4.1
qax-os

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

The source says 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. Vendor/CNA’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high.