AntiCrasher

Compatibility: Paper, Fabric, Velocity, and Folia

This handy plugin/mod offers a comprehensive solution for protecting your server against various vulnerabilities. It bundles together fixes for critical bugs that can cause crashes, item duplication, and other issues.

Prevented Issues

The modification blocks the following common exploits:

• Bundle container crash - prevents server termination
• Book duplication - eliminates infinite item copying
• Negative slot ID crash - protection against invalid inventory requests
• NBT tag autocomplete crash - blocks dangerous commands with NBT parameters

Installation

For Paper/Folia/Velocity

1. Download the latest version and move the file to the plugins directory
2. Restart the server or proxy

For Fabric

WARNING: For online mode servers versions 1.20.4 and newer, there is a compatibility issue with PacketEvents Fabric. As a temporary solution, it's recommended to use the Velocity proxy version.

1. Download the current build and place in the mods folder
2. Install Fabric API for your server
3. Add the fabric-build package from the Axionize/packetevents repository to the mods directory
4. Reload the server

For versions 1.21.8+ use official PacketEvents builds

Management

Commands:

• /ac reload - reload configuration files (requires anticrasher.command.reload permission)

Permissions:

• anticrasher.alerts - receive notifications about exploit attempts
• anticrasher.bypass - bypass all security checks
• anticrasher.updates - notifications about available updates