[BUG] Title: Bash tool: third-party CLI binaries silently fail (exit 1, no output) even with dangerouslyDisableSandbox: true

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?

When Claude Code's Bash tool executes certain third-party CLI binaries, they fail silently with exit code 1 and no output — even when dangerouslyDisableSandbox: true is set. The same binaries work perfectly in the user's terminal.

Environment:

• OS: Fedora Linux 6.19.8-200.fc43.x86_64
• Shell: bash
• Claude Code version: (doplň claude --version)
• Affected binary: glab 1.89.0 (/usr/bin/glab)

Steps to reproduce:

1. Install glab (GitLab CLI) — e.g. sudo dnf install glab
2. Verify it works: glab --version → prints glab 1.89.0 ()
3. Ask Claude Code to run: glab --version
4. Bash tool returns exit code 1, empty output

Expected behavior:

glab --version executes and returns glab 1.89.0 () — same as in the terminal.

Actual behavior:

Exit code 1
(no output, no stderr)

Additional notes:

• git (same permissions, same location /usr/bin/) works correctly via Bash tool
• ldd /usr/bin/glab shows no missing libraries
• Adding Bash(glab:*) to permissions.allow in settings.json did not help
• Using dangerouslyDisableSandbox: true in the tool call did not help
• The issue appears to affect other third-party binaries as well (not just glab)

Thank you

Kamil

What Should Happen?

All commands which are working in bash (have correct PATH etc) should work in claude-code.

Error Messages/Logs

● Bash(which glab && /usr/bin/glab pipeline list 2>&1 | head -10)
  ⎿  Error: Exit code 1

● Bash(which glab 2>&1; ls -la /usr/bin/glab 2>&1; glab --version 2>&1)
  ⎿  Error: Exit code 1

Steps to Reproduce

run claude in bash inside of some project.

In claude console do git status ie.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.80

Platform

Anthropic API

Operating System

Other Linux

Terminal/Shell

Other

Additional Information

_No response_