Memory Leak / Disk Space Reclamation

Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

After 24+ hours of idle time across two open windows, CPU usage spikes to 100% and available disk space drops drastically. A system reboot restores ~14 GB of free space.

Steps to Reproduce

  1. Keep two Cursor windows open for ~24 hours (one idle for 8 hours).
  2. Observe increasing CPU and I/O activity.
  3. Check disk space before and after reboot.

Expected Behavior

Cursor should not leak memory or fill temporary storage when idle and definitely not eat up 14GB+.

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.1.0-pre.22.patch.0 (Universal)
VSCode Version: 1.99.3
Commit: 159f7e129f630c2fad0f644285bdb14cc8a6e000
Date: 2025-11-10T22:59:27.440Z (6 hrs ago)
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

Additional Information

No other process, i/o intense app were running.

Does this stop you from using Cursor

Yes - Cursor is unusable

2

hi @SkinnnyJay and thank you for the detailed bug report.

Could you check following and provide more information so we can reproduce it.

  • Please check Help > Open Process Explorer and post here a screenshot.
  • Do you have any processes running in terminal within Cursor?
  • Does this also occur on a new project? (would indicate large chat storage)
  • Does this occur when you run with extensions disabled? cursor --disable-extensions
3

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