Improper Restriction of XML External Entity Reference in com.monitorjbl:xlsx-streamer
Date: 2022-03
Affected: maven/com.monitorjbl:xlsx-streamer
Attack vector: other
Category: vulnerability-disclosure
Severity: Critical
CVE: CVE-2022-23640
CWE: CWE-611
CWE-776
CVSS: 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

### Impact Prior to xlsx-streamer 2.1.0, the XML parser that was used did not apply all the necessary settings to prevent XML Entity Expansion issues. ### Patches Upgrade to version 2.1.0. ### Workarounds No known workaround. ### References https://github.com/monitorjbl/excel-streaming-reader/commit/0749c7b9709db078ccdeada16d46a34bc2910c73 ### For more information If you have any questions or comments about this advisory: * Open an issue in [monitorjbl/excel-streaming-reader](https://github.com/monitorjbl/excel-streaming-reader)


Mitigations:

Architectural layers (MAESTRO):