[BUG] Windows x64: deterministic Bun 1.4.0 segfault at 0xFFFFFFFFFFFFFFFF on any command that performs a network fetch (2.1.220)
Status Open
Reported on v2.1.220
Maintainer reply None cached
Activity 0 comments · opened Aug 1, 2026
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?
claude-code-bun-segfault-issue.md
What Should Happen?
No error message - response to promp
Error Messages/Logs
Steps to Reproduce
Any prompt
Claude Model
None
Is this a regression?
Yes, this worked in a previous version
Last Working Version
_No response_
Claude Code Version
VS Code extension 2.1.220 (anthropic.claude-code-2.1.220-win32-x64), installed 2026-07-26
Platform
Anthropic API
Operating System
Windows
Terminal/Shell
Terminal.app (macOS)
Additional Information
VsCode version 1.94.0