[BUG]

Resolved 💬 4 comments Opened May 12, 2026 by netanbi87 Closed May 15, 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?

============================================================
Bun v1.3.14 (99ab292b) Windows x64 (baseline)
Windows v.win11_dt
CPU: sse42 avx avx2
Args: "C:\Users\netanelb\AppData\Roaming\npm\\node_modules\@anthropic-ai\claude-code\bin\claude.exe" "/doctor"
Features: Bun.stderr(2) Bun.stdin(2) Bun.stdout(2) fetch jsc spawn(2) standalone_executable yaml_parse claude_code
Builtins: "bun:ffi" "bun:main" "node:assert" "node:async_hooks" "node:buffer" "node:child_process" "node:crypto" "node:dns" "node:events" "node:fs" "node:fs/promises" "node:http" "node:https" "node:module" "node:net" "node:os" "node:path" "node:path/posix" "node:path/win32" "node:perf_hooks" "node:process" "node:readline" "node:stream" "node:stream/consumers" "node:stream/promises" "node:string_decoder" "node:timers/promises" "node:tls" "node:tty" "node:url" "node:util" "node:vm" "node:zlib" "ws" "node:http2"
Elapsed: 1231ms | User: 453ms | Sys: 312ms
RSS: 0.25GB | Peak: 0.25GB | Commit: 0.35GB | Faults: 63282 | Machine: 34.03GB

panic(main thread): Segmentation fault at address 0x40FE0

panic: Segmentation fault at address 0x1953D03FFE8
panicked during a panic. Aborting.

What Should Happen?

============================================================
Bun v1.3.14 (99ab292b) Windows x64 (baseline)
Windows v.win11_dt
CPU: sse42 avx avx2
Args: "C:\Users\netanelb\AppData\Roaming\npm\\node_modules\@anthropic-ai\claude-code\bin\claude.exe" "/doctor"
Features: Bun.stderr(2) Bun.stdin(2) Bun.stdout(2) fetch jsc spawn(2) standalone_executable yaml_parse claude_code
Builtins: "bun:ffi" "bun:main" "node:assert" "node:async_hooks" "node:buffer" "node:child_process" "node:crypto" "node:dns" "node:events" "node:fs" "node:fs/promises" "node:http" "node:https" "node:module" "node:net" "node:os" "node:path" "node:path/posix" "node:path/win32" "node:perf_hooks" "node:process" "node:readline" "node:stream" "node:stream/consumers" "node:stream/promises" "node:string_decoder" "node:timers/promises" "node:tls" "node:tty" "node:url" "node:util" "node:vm" "node:zlib" "ws" "node:http2"
Elapsed: 1231ms | User: 453ms | Sys: 312ms
RSS: 0.25GB | Peak: 0.25GB | Commit: 0.35GB | Faults: 63282 | Machine: 34.03GB

panic(main thread): Segmentation fault at address 0x40FE0

panic: Segmentation fault at address 0x1953D03FFE8
panicked during a panic. Aborting.

Error Messages/Logs

Steps to Reproduce

============================================================
Bun v1.3.14 (99ab292b) Windows x64 (baseline)
Windows v.win11_dt
CPU: sse42 avx avx2
Args: "C:\Users\netanelb\AppData\Roaming\npm\\node_modules\@anthropic-ai\claude-code\bin\claude.exe" "/doctor"
Features: Bun.stderr(2) Bun.stdin(2) Bun.stdout(2) fetch jsc spawn(2) standalone_executable yaml_parse claude_code
Builtins: "bun:ffi" "bun:main" "node:assert" "node:async_hooks" "node:buffer" "node:child_process" "node:crypto" "node:dns" "node:events" "node:fs" "node:fs/promises" "node:http" "node:https" "node:module" "node:net" "node:os" "node:path" "node:path/posix" "node:path/win32" "node:perf_hooks" "node:process" "node:readline" "node:stream" "node:stream/consumers" "node:stream/promises" "node:string_decoder" "node:timers/promises" "node:tls" "node:tty" "node:url" "node:util" "node:vm" "node:zlib" "ws" "node:http2"
Elapsed: 1231ms | User: 453ms | Sys: 312ms
RSS: 0.25GB | Peak: 0.25GB | Commit: 0.35GB | Faults: 63282 | Machine: 34.03GB

panic(main thread): Segmentation fault at address 0x40FE0

panic: Segmentation fault at address 0x1953D03FFE8
panicked during a panic. Aborting.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude Code v2.1.13

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_

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