Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
I have been working on my project and getting Agent to resolve my GCP service account issues. Suddenly after one of the messages i saw the agent processing something completely out of context. I suppose that this is other person’s chat. I stopped the execution multiple times and on retry i got different agent logs in multiple languages and various topics. I was using Sonnet 4.5 thinking. When i changed to Opus it got fixed. Now i am unsure whether my information is safe and if nobody else got access to my context.
This is a critical security issue that makes me really concerned.
Steps to Reproduce
Use the agent with Sonnet 4.5
Screenshots / Screen Recordings
Operating System
MacOS
Current Cursor Version (Menu → About Cursor → Copy)
Version: 2.1.47 (Universal)
VSCode Version: 1.105.1
Commit: 2d3ce3499c15efd55b6b8538ea255eb7ba4266b0
Date: 2025-12-04T02:31:50.567Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin x64 24.6.0
For AI issues: which model did you use?
Sonnet 4.5 thinking
Does this stop you from using Cursor
No - Cursor works, but with this issue