Cowork: Failed to create bridge sockets after 5 attempts (v1.3036.0)

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?

=== SUMMARY ===
Cowork "Failed to create bridge sockets after 5 attempts" crash
Related: https://github.com/anthropics/claude-code/issues/23746

Environment:

• macOS (Darwin)
• Claude Desktop 1.3036.0
• Claude Code SDK 2.1.111
• VM bundle: 5680b11bcdab215cccf07e0c0bd1bd9213b0c25d
• Reproduces: every Cowork session, 100% failure, ~900ms after spawn

Symptoms:

• VM boots successfully ("Startup complete, total time: 6009ms")
• Network reachable ("API reachability: REACHABLE")
• CLI spawns into VM successfully ("Spawn succeeded in 53ms")
• CLI exits within ~900ms with stderr: "Error: Failed to create bridge sockets after 5 attempts"
• Exit code 1, signal null, oom false
• Fresh sessions (isResume=false), allowedDomains=23
• Happens both before and after quarantine removal from /Applications/Claude.app
• Happens on freshly-launched Claude Desktop process

Attempted fixes (none resolved):

• Removed com.apple.quarantine from /Applications/Claude.app
• Full app quit and relaunch
• Cleared stuck VM sandbox-user state via restart

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cowork-vm-node-excerpts.txt
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summary.txt

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What Should Happen?

Claude cowork should have worked

Error Messages/Logs

Steps to Reproduce

=== SUMMARY ===
Cowork "Failed to create bridge sockets after 5 attempts" crash
Related: https://github.com/anthropics/claude-code/issues/23746

Environment:

• macOS (Darwin)
• Claude Desktop 1.3036.0
• Claude Code SDK 2.1.111
• VM bundle: 5680b11bcdab215cccf07e0c0bd1bd9213b0c25d
• Reproduces: every Cowork session, 100% failure, ~900ms after spawn

Symptoms:

• VM boots successfully ("Startup complete, total time: 6009ms")
• Network reachable ("API reachability: REACHABLE")
• CLI spawns into VM successfully ("Spawn succeeded in 53ms")
• CLI exits within ~900ms with stderr: "Error: Failed to create bridge sockets after 5 attempts"
• Exit code 1, signal null, oom false
• Fresh sessions (isResume=false), allowedDomains=23
• Happens both before and after quarantine removal from /Applications/Claude.app
• Happens on freshly-launched Claude Desktop process

Attempted fixes (none resolved):

• Removed com.apple.quarantine from /Applications/Claude.app
• Full app quit and relaunch
• Cleared stuck VM sandbox-user state via restart

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.3036.0.

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_