This bug won't affect survival minecraft but does affect people like me who make maps. If you use a command block or just a command, and give a silverfish strength 256. When he hits you, you don't take damage. Instead you gain absorption hearts. P.s I do have resistance but I checked and it has no affect on the bug.
Thank you for your report!
We're tracking this issue in MCPE-56836, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki