[BUG] JetBrains IDE plugin integration does not work when Claude Code runs in Docker container

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

JetBrains IDE plugin integration does not work when Claude Code runs in Docker container, Claude Code is unable to connect to the IDE. I have tried the "Accept connections from all network interfaces" setting.

This is on Linux, and I am running the Docker container with docker run --network=host ....

What Should Happen?

It should be able to connect to the IDE.

Error Messages/Logs

Steps to Reproduce

1. Install the Claude Code in JetBrains IntelliJ IDEA Ultimate
2. Restart the IDE
3. Press the icon to launch Claude Code from the IDE

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.0.11 (Claude Code)

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

IntelliJ IDEA terminal

Additional Information

_No response_