Here is a link to a list of IBM products that are affected by the Log4J v2.x vulnerability (CVE-2021-44228):
https://www.ibm.com/blogs/psirt/page/2/?s=2021-44228
The only IBM MQ related hit so far is for IBM MQ Blockchain bridge.
Note: This is an actively growing list of IBM products. Hence, you should check back each day.
Here is a link to the Log4J v2.x vulnerability description:
https://unit42.paloaltonetworks.com/apache-log4j-vulnerability-cve-2021-44228/
Regards,
Roger Lacroix
Capitalware Inc.