CVE Watch13 de nov. de 2026

CVE-2026-128339

ExcelJS through 4.4.0 contains a memory exhaustion vulnerability in Worksheet._parseMergeCells that allows attackers to crash applications b

CVSS

7.5

Alta

EPSS

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KEV

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Exploit Today

0-100

Publicado: 13 de nov. de 2026 · Última mod.: 13 de nov. de 2026 · CWE-770

EPSS · 30d

Ainda não há histórico EPSS suficiente.

Descrição técnica

ExcelJS through 4.4.0 contains a memory exhaustion vulnerability in Worksheet._parseMergeCells that allows attackers to crash applications by supplying unbounded mergeCell ranges. Attackers can craft a small workbook with a mergeCell ref like A1:XFD1048576, causing xlsx.load() to create billions of Row and Cell objects and abort the process.

Referências oficiais

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