All extensions die after update

Support Bug Reports
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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

20.02.2026 install update

Open project and all extensions are die, I cant work now in editor (etensions vim mode, claude code, postgre etc)

Error:
Extensions host terminated

Steps to Reproduce

Open cursor and extensions doesnt work

Expected Behavior

All extensions work correctly

Screenshots / Screen Recordings

Снимок экрана 2026-02-20 в 16.22.29.png
Снимок экрана 2026-02-20 в 16.22.29.png886×358 26.7 KB

Operating System

MacOS

Version Information

Version: 2.5.17 (Universal)
VSCode Version: 1.105.1
Commit: 7b98dcb824ea96c9c62362a5e80dbf0d1aae4770
Date: 2026-02-17T05:58:33.110Z (3 days ago)
Build Type: Stable
Release Track: Default
Electron: 39.3.0
Chromium: 142.0.7444.265
Node.js: 22.21.1
V8: 14.2.231.22-electron.0
OS: Darwin arm64 23.1.0

Does this stop you from using Cursor

Yes - Cursor is unusable

3

Hey, thanks for the report. This is a known issue that can happen after updates, the extension host can get stuck in a crash loop.

A few things you can try:

  1. Launch Cursor from Terminal with cursor --disable-extensions. If everything works fine, it’s likely a conflict with a specific extension. Then you can turn extensions back on one by one to find the one causing it.

  2. If that doesn’t help, try downloading the previous stable version from Cursor · Download and roll back.

  3. Also, how big is your project, roughly how many files? There’s a known issue where very large workspaces can cause the extension host crash loop specifically in version 2.5.17.

The team is aware of extension host stability issues in this version. Your report helps us prioritize.

Let me know how it goes.

4

After update on version below everething is okay, thank you. I do nothing, only upgrade cursor.

My projects are not so big.

Version: 2.5.20 (Universal)

VSCode Version: 1.105.1