[BUG] ReferenceError: ReadableStream is not defined

Environment

• Platform (select one):
• [ ] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [x] Other: Claude Code
• Claude CLI version: latest as of 2025.06.24
• Operating System: macOS 15.5 (arm64)
• Terminal: iTerm2 3.5.14 with Oh My Zsh

Bug Description

Running Claude Code fails with an error.

Steps to Reproduce

1. From iTerm2
2. run npm install -g @anthropic-ai/claude-code
3. run claude

Expected Behavior

Claude should launch

Actual Behavior

up to date in 400ms

24 packages are looking for funding
  run `npm fund` for details
file:///Users/FOO/.volta/tools/image/packages/@anthropic-ai/claude-code/lib/node_modules/@anthropic-ai/claude-code/cli.js:319
<<file_contents_removed>>

ReferenceError: ReadableStream is not defined
    at file:///Users/FOO/.volta/tools/image/packages/@anthropic-ai/claude-code/lib/node_modules/@anthropic-ai/claude-code/cli.js:319:18633
    at file:///Users/FOO/.volta/tools/image/packages/@anthropic-ai/claude-code/lib/node_modules/@anthropic-ai/claude-code/cli.js:7:402
    at file:///Users/FOO/.volta/tools/image/packages/@anthropic-ai/claude-code/lib/node_modules/@anthropic-ai/claude-code/cli.js:319:32045
    at file:///Users/FOO/.volta/tools/image/packages/@anthropic-ai/claude-code/lib/node_modules/@anthropic-ai/claude-code/cli.js:7:402
    at file:///Users/FOO/.volta/tools/image/packages/@anthropic-ai/claude-code/lib/node_modules/@anthropic-ai/claude-code/cli.js:320:6062
    at file:///Users/FOO/.volta/tools/image/packages/@anthropic-ai/claude-code/lib/node_modules/@anthropic-ai/claude-code/cli.js:7:402
    at file:///Users/FOO/.volta/tools/image/packages/@anthropic-ai/claude-code/lib/node_modules/@anthropic-ai/claude-code/cli.js:716:1151

Additional Context

$ node -v
v22.2.0
$ npm -v
10.7.0
$ nvm -v
0.39.7