CVE-2022-23640: Excel Streaming Reader Project Excel Streaming Reader

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

Excel-Streaming-Reader is an easy-to-use implementation of a streaming Excel reader using Apache POI. Prior to xlsx-streamer 2.1.0, the XML parser that was used did apply all the necessary settings to prevent XML Entity Expansion issues. Upgrade to version 2.1.0 to receive a patch. There is no known workaround.

Affected products

• Excel Streaming Reader Project Excel Streaming Reader: before 2.1.0 (fixed in 2.1.0)

Published 2022-03-02. Last modified 2026-06-17.