[MC-53444] You can get outside of the worldborder by mounting a rideable entity (boat, pig, etc.) outside of it

The bug

You can mount entities which are outside of the worldborder.

How to reproduce

Spawn a ridable entity, such as a boat, some blocks away from you
```
/summon boat ~10 ~ ~
```
Center the worldborder on you
```
/worldborder center ~ ~
```
Set the worldborder size to not contain the ridable entity anymore
```
/worldborder set 14
```
Try to mount the entity

Attachments

MC-53444.mp4

Comments

migrated 2014-04-24T18:52:47Z

[media][media]

shufboyardee 2014-04-30T16:07:35Z

still in 18a, but now you need to set up the track before bringing in the border.

galaxy_2alex 2014-10-31T16:08:31Z

Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases. If this has been done, we can reopen the issue.

Keep in mind that the "Resolved"-Status on this ticket just means "Answered", and that we are waiting for further information on whether this issue still exists or not. We will reopen it as soon as the requested information has been delivered.

migrated 2015-03-18T00:52:31Z

Confirmed for 1.8.3.

SunCat 2016-03-05T22:15:30Z

Confirmed for 1.9, you can use boats

SunCat 2016-04-13T19:43:38Z

Still in 16w15b

migrated 2019-08-30T04:03:24Z

Can confirm for 1.14.2.

Something worth noting:

A player can also place a boat right on the block the worldborder is on.
They can then get inside the boat and drive it right through the world border.
This essentially allows any player who is able to build and has a boat, to go through the world border.

Avoma 2020-11-27T18:28:56Z

Can confirm in 20w48a.

Avoma 2021-01-22T19:28:35Z

Can confirm in 21w03a.

Avoma 2021-02-06T14:07:22Z

Can confirm in 21w05b.

Avoma 2021-02-12T14:01:08Z

Can confirm in 21w06a.

Avoma 2021-02-19T11:31:20Z

Can confirm in 21w07a. Video attached.

Avoma 2021-07-13T08:04:23Z

Can confirm in 1.17.1.