Cursor Extension Host Crashes on macOS 26.1 (Tahoe) - Nightly Build

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Hey, thanks for the report. This matches the known crash with code 5 that the team is actively investigating.

You’re right, the GPU fix in Electron for macOS Tahoe was limited to versions 26.0.0 and 26.0.1 - macOS 26.1 seems to need additional coverage.

To narrow it down, please share:

  • MCP servers: do you have any MCP servers installed? (Settings → MCP → check Atlassian, GitHub, Supabase, etc.) - many code 5 crashes are linked to MCP
  • Clean project test: run cursor --disable-extensions in a new/empty folder with a fresh chat
  • Full logs: from ~/Library/Application Support/Cursor/logs/[timestamp]/main.log and exthost.log

If needed, I’ll escalate this for macOS 26.1 support. Let me know what you find.