PaperMC / PaperMC/Paper

The "minecraft.commandblock" permission is broken.

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#14,136 3 comments 2 reactions 0 assignees View on GitHub

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status: needs triage version: 26.2
Dominant language
Java
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Description

Expected behavior

When players are granted this permission, I expected that they would be able to open the interface for Command Blocks.

Observed/Actual behavior

When I pressed the use key, nothing happened despite having the "minecraft.commandblock" permission. The block can still be broken, however.

Steps/models to reproduce

To reproduce this, make sure that you have the "minecraft.commandblock" permission and don't have operator privileges. Try pressing the use key on a Command Block. Nothing will happen.

Plugin and Datapack List

Server Plugins (1):
Bukkit Plugins:

  • LuckPerms

There are 3 data pack(s) enabled: [vanilla (built-in)], [file/bukkit (world)], [paper (built-in)]

Paper version

This server is running Paper version 26.2-92-main@0a99345 (2026-08-02T20:33:44Z) (Implementing API version 26.2.build.92-stable)

Other

This problem also occurs with Command Block Minecarts. It can be reproduced using the same method.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the command block interaction with a non-operator who has the minecraft.commandblock permission, then trace the permission check for opening command blocks and command block minecarts. Done means both interfaces open for permissioned players while players without the permission remain unable to open them.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
game-dev
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Active
Clarity
Mostly clear
Newbie friendliness
63/100

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