CVE-2026-59161
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, the streaming worksheet reader used by Rows and GetRows does not enforce the TotalRows limit on the row r attribute, allowing a small XLSX file with a row number above 1048576 and no cell coordinate to make GetRows append empty rows up to the attacker-controlled index and consume excessive memory and CPU. This issue is fixed in version 2.11.0.
Weakness
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, the streaming worksheet reader used by Rows and GetRows does not enforce the TotalRows limit on the row r attribute, allowing a small XLSX file with a row number above 1048576 and no cell coordinate to make GetRows append empty rows up to the attacker-controlled index and consume excessive memory and CPU. This issue is fixed in version 2.11.0.
Affected products
- excelize excelize
References
- https://github.com/qax-os/excelize/commit/93f0b3caed37f21ef5079e3259c6c21dcfe68453
- https://github.com/qax-os/excelize/pull/2331
- https://github.com/qax-os/excelize/releases/tag/v2.11.0
- https://github.com/qax-os/excelize/security/advisories/GHSA-q5j5-6p94-4gwc
- https://github.com/qax-os/excelize/security/advisories/GHSA-q5j5-6p94-4gwc
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