Based on https://confluence.atlassian.com/kb/faq-for-cve-2021-44228-1103069406.html
The following products use the Atlassian-maintained fork of Log4j 1.2.17:
Jira Software and Data Center
How does it mitigate and resolve against this critical vulnerability which affect log4j1.2.17?
https://nvd.nist.gov/vuln/detail/CVE-2019-17571
Does Atlassian not intend to upgrade their log4j to 2.17.0 or 2.17.1?