GHSA-6p4m-pmw8-v6w9HighCVSS 7.5

exceljs through 4.4.0 contains a memory exhaustion vulnerability that allows attackers to crash...

Published
November 13, 2026
Last Modified
November 13, 2026

🔗 CVE IDs covered (1)

📋 Description

exceljs through 4.4.0 contains a memory exhaustion vulnerability that allows attackers to crash applications by supplying a worksheet col element with an unbounded max attribute. Attackers can craft a small workbook with a huge max value, causing xlsx.load() to allocate hundreds of millions of Column objects and abort the process with an uncatchable heap out-of-memory error.

🔗 References (7)