CVE Watch13 oct 2026

CVE-2026-107218

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.10.1 to 2.11.0, RIGHT validates the requested

CVSS

5.3

Medio

EPSS

0.3%

p20

KEV

—

Exploit Today

0-100

Publicado: 7 oct 2026 · Última mod.: 13 oct 2026 · CWE-129

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-10-082026-10-23

Descripción técnica

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.10.1 to 2.11.0, RIGHT validates the requested length with UTF-16 code-unit counts but slices a rune array using Unicode code-point counts. RIGHT reaches leftRight through CalcCellValue, where countUTF16String validates one unit but utf8.RuneCountInString supplies the slice index in another. When RIGHT evaluates supplementary-plane text with a requested character count between the rune count and UTF-16 code-unit count, the inconsistent units produce a negative rune-slice index, allowing an attacker to panic during formula evaluation. No fixed version is available as of this review.

Referencias oficiales

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