Interior stud cavity wet – GreenBuildingAdvisor

I have a conduit running across multiple stud cavities in an exterior facing wall. The conduit runs from a cantilevered fireplace bump out to the adjacent wall.

I went to fish some wire and noticed the fiberglass batt insulation and the wood behind it were wet near the termination of the conduit on the adjacent wall. There were even some ice chunks inside the insulation.

Any idea what could be causing this and what I need to do to get this sorted out?

Images below as they won’t attach to the post:

https://imgur.com/a/fKkHNSO