To answer my own question, it is not upgraded in 5.19:
$ jar tvf rundeck-5.19.0-20260202.war | grep log4j
24248 Mon May 12 16:40:32 CDT 2025 WEB-INF/lib/log4j-slf4j-impl-2.17.2.jar
1811089 Mon May 12 16:40:32 CDT 2025 WEB-INF/lib/log4j-core-2.17.2.jar
30948 Mon May 12 16:40:32 CDT 2025 WEB-INF/lib/log4j-jul-2.17.2.jar
302511 Mon May 12 16:40:34 CDT 2025 WEB-INF/lib/log4j-api-2.17.2.jar
13046 Mon Feb 02 21:21:52 CST 2026 templates/config/log4j2.properties.template
Does anyone have an idea when this will be in the release?
Thanks,
Eric