Zombies have more attack range

Not a bug. Per past changelogs mob attack range was changed to be hitbox with an additional width, changing range for pretty much everything.

Yes this was change in 23w33a, you can read about it here.

Thank you for your report!
However, this issue is Invalid per the previous comments by @unknown and @unknown.

Quote from the provided changelog:

Mob attack reach changes

The calculations to determine whether a mob can attack a player or other mobs have been changed. Previously a mob's horizontal width was used to determine their attack reach and their height had no effect. The area where a mob can attack is now their bounding box extended in horizontal directions.

Here are some situations where the new rules will affect the reach of mobs:

1. If a mob is entirely below you, or entirely above you, it will not be able to reach you

2. While riding on a medium-sized mob, like a Horse, you will be protected from small mobs, like Baby Zombies

3. While riding on a tall mob, like a Camel, you will be protected from standard size mobs, like Zombies

4. Also, Ravagers won't be able to attack you through a few block thick walls anymore

5. However, to escape from an Enderman, you need to be at least 3 blocks above the ground, not 1.5 as before

6. Mobs will be able to attack you with the bottom of their hitbox, assuming your head is in range

7. Builds that trap hostile mobs might need to be adjusted to be safe

This change does not affect the reach of players, and mobs still need to see their target to attack it. We believe this new system will be more intuitive and will result in a more consistent behavior, and we welcome all feedback on this change.

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