yuriymalygin opened a new pull request, #6480:
URL: https://github.com/apache/hive/pull/6480

   Apache Hive currently depends on Apache Log4j Core versions affected by 
CVE-2026-34480.
   
   The vulnerability affects XmlLayout in Log4j Core up to version 2.25.3. 
Malformed XML output may be produced when log messages contain characters 
forbidden by XML 1.0 specification. Depending on the StAX implementation, this 
can result in:
   - invalid XML logs rejected by downstream log processing systems
   - silent log event loss
   - exceptions during logging operations
   
   Upstream fix is available in Log4j Core 2.25.4


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