I overheard my coworker told another coworker about my coworkers error? Is this normal?

My coworker Nikaa told my coworker Marn that Mrs Jo scolded D for something. Nikaa said that Mrs Jo mentioned it to her. Now Im afraid to open up to Nikaa because she might told another coworker too.
I overheard my coworker told another coworker about my coworkers error? Is this normal?
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