[BUG] v2.1.123 crashes on startup with "Module not found ''" (Linux x86-64 baseline)

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?

After the automatic update to v2.1.123, Claude Code fails to start
with the following error:

error: Module not found ''

Bun v1.3.14 (Linux x64 baseline)

The module name in the error is blank (whitespace only), suggesting a
bundling/packaging issue in the released binary rather than a
missing user dependency.

Environment

• OS: Ubuntu 22.04, Linux 6.8.0-59-generic, x86-64
• Binary: standalone ELF (~/.local/share/claude/versions/2.1.123, 247

MB)

• Embedded Bun: v1.3.14 (Linux x64 baseline)

Workaround - not complete
Manually re-pointing the symlink to the previous version:
ln -sf ~/.local/share/claude/versions/2.1.122 ~/.local/bin/claude
auto updater keeps rewriting the link to the new (and broken) version.

What Should Happen?

Claude Code should start normally (as v2.1.122 does on the same machine).

Error Messages/Logs

error: Module not found ''

Bun v1.3.14 (Linux x64 baseline)

Steps to Reproduce

1. Allow auto-update from v2.1.122 → v2.1.123
2. Run claude (or the binary directly)
3. See the error above immediately, before any output

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.1.122

Claude Code Version

2.1.123

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

_No response_