CVE-2026-78208

HighCVSS 7.5/10Last modified Oct 14, 2026

Description

exceljs through 4.4.0 contains a path traversal vulnerability in the Workbook.addImage() function that fails to validate file paths. Attackers can supply arbitrary file paths to read any file accessible to the Node.js process and embed it in the generated workbook.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-73

Affected software

No affected versions have been published.

Timeline

Published: Aug 24, 2026
Last modified: Oct 14, 2026
NVD status: Deferred

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