CVE-2026-78208: falha de alta gravidade em exceljs
exceljs through 4.4.0 Path Traversal via Unvalidated addImage filename
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.7epss 0.5%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
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Referências
https://github.com/exceljs/exceljshttps://github.com/exceljs/exceljs/blob/v4.4.0/lib/doc/workbook.js#L142-L147https://github.com/exceljs/exceljs/blob/v4.4.0/lib/xlsx/xlsx.js#L421-L429https://github.com/mateocallec/exceljs-hardened/security/advisories/GHSA-m8mg-8574-gm3mhttps://www.vulncheck.com/advisories/exceljs-through-path-traversal-via-unvalidated-addimage-filename