Specific Character Sequence [^ causes Xray to rise up CPU levels of Instance

Description
Using the char sequence

[^

, the Xray causes Jira to almost block the opening of the issue that has this data in their description.

How to reproduce

1. Create an Issue with the above characters sequence

Actual result/Attachments
The page of the issue doesn't open, and performance starts to degrade
To stop this, you need to disable Xray, after that, the issue can be opened.
Or if you remove the sequence that causes this, it will stop, too.

Expected result
The page of the Issue should open without any performance issue