Text bleedover into Blocks area

Problem/Motivation

The text located in the body area of forum messages bleeds over into the sidebar blocks section.
This appears to only be with http/https links that are fairly long.
See file attachment for example of bleedover.

Steps to reproduce

Reproduced with several forum messages in which long links were used.

Proposed resolution

Not sure. Am not involved with coding, only admin of the site.

Remaining tasks

User interface changes

API changes

Data model changes