Cursor is crashing when trying to tag branch diff

[naorpeled (Naor)]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Cursor crashes consistently when I attempt to tag the branch diff to attach it as context.

Please advise on troubleshooting steps or a workaround.

Thanks in advance

Steps to Reproduce

Tag the branch diff

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.3.0-pre.21.patch.0
VSCode Version: 1.105.1
Commit: 77a0ad532aee10b3ef76212ed11c845ef9383f00
Date: 2025-12-20T08:11:39.003Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 24.3.0

Does this stop you from using Cursor

Yes - Cursor is unusable

[deanrie]

Hey, thanks for the report. This is a known issue and the team is working on a fix. It looks related to handling large diffs.

Let’s collect some diagnostic info to help the investigation.

Could you please check:

• Run Cursor without extensions: cursor --disable-extensions from a terminal. Does the crash still happen?
• Open Cmd+Shift+P > Developer: Open Process Explorer and take a screenshot showing which process is spiking or causing the issue
• Open Help > Toggle Developer Tools, go to the Console tab, and share any errors from there
• Open Cmd+Shift+P > Developer: Open Logs Folder and share the logs
• How many files are changed in your branch? You can check with git diff --stat

Please send the screenshots, logs, and the results from the checks above.

[naorpeled (Naor)]

When running Cursor without extension the issue still persists.
I’ve opened the process explorer but it doesn’t seem like there’s an indication of a spike on any of the processes in the live tab.

Regarding the logs folder, I’d prefer not to share that in a public forum. Is there a way to send it in a secure and private way?

The diff is: 4 files changed, 121 insertions(+), 16 deletions(-)