Cursor crashing with error code 5

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Literally crashed 10 times in the last hour

The window terminated unexpectedly (reason: ‘crashed’, code: ‘5’)

Steps to Reproduce

Use Sonnet 4.5

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.0.77
VSCode Version: 1.99.3
Commit: ba90f2f88e4911312761abab9492c42442117cf0
Date: 2025-11-13T23:10:43.113Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 24.6.0

For AI issues: which model did you use?

Sonnet 4.5

Does this stop you from using Cursor

Yes - Cursor is unusable

2

Thanks for reporting this.
Quick checks:

  1. Do you use a corporate VPN or proxy (especially Zscaler)? A similar issue was caused by network tools intercepting api.cursor.sh traffic
  2. Try launching with cursor --disable-extensions from terminal - does it still crash?
  3. Test on a simple/empty project

Please share any steps to reproduce (does it crash immediately on launch, or some other condition)