Description
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.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| qax-os | excelize | < 2.11.0 |
References
- https://github.com/qax-os/excelize/commit/93f0b3caed37f21ef5079e3259c6c21dcfe68453Patch
- https://github.com/qax-os/excelize/pull/2331Issue Tracking, Patch
- https://github.com/qax-os/excelize/releases/tag/v2.11.0Release Notes
- https://github.com/qax-os/excelize/security/advisories/GHSA-q5j5-6p94-4gwcExploit, Vendor Advisory
- https://github.com/qax-os/excelize/security/advisories/GHSA-q5j5-6p94-4gwcExploit, Vendor Advisory
Timeline
- Published
- Jul 10, 2026
- Last modified
- Oct 25, 2026
- NVD status
- Analyzed