Where does the bug appear (feature/product)? Cursor IDE Describe the Bug Environment Cursor version: 2.5.20 (stable, commit 511523af) OS: Windows 11 Pro Build 26200 CPU: AMD Ryzen Threadripper 3970X (32-core) GPU: NVIDIA GeForce RTX 5080 RAM: 128 GB (76+ GB free at time of crash) Page file: 32 GB …

Hi all! Can you please provide the exact version of Cursor that you’re using, alongside system details (Help > About or Cursor > About Cursor depending on your system).

Hi @Colin this is likely happening due to agent transcript writes (.jsonl), when serializing the json transcript Cursor goes above 4gb in usage and crashes as a result. Tool calls such as subagents also make the OOM happen faster. This means I often have to start a new chat instead and abandon an o…

Same here during every more complex prompt since yesterday: [image] [image] Super annoying !

The crash occurs for me when the agent has been running for 3+ minutes, the IDE and chats with agents seem fine until big jobs happen. [image] I’m using Cursor 2.5.26 system.

I have the same problem. 189ac81f-1b99-422a-a0ef-6c58e023587f - reguest ID [image] I don’t think it’s a lack of memory. [image] [image]

Hey all! We have fixed quite a few memory issues in 2.6, so please try upgrading (you can pull from https://cursor.com/downloads if your cilent hasn’t auto-updated)!

Yep, same issue here. After updating to 2.6.11, I noticed right away that the program was running awfully slow, after a couple of prompts and basic operations RAM usage skyrocketed to 5GB+ (and climbing lol) with CPU usage hovering around 20-30% which points to some sort of memory leak. Killing th…

Not just annoying, in-progress requests doesn’t get returned.

[image] I now have the out of memory issue. I didn’t have an issue until cursor updated to 26.11 yesterday. My main project I can no longer work on because cursor closes within a couple of minutes. My backup dev machine has updated itself to the same version and is doing exactly the same thing. …

Renderer OOM crash (code -536870904) every ~3 minutes on Windows — 128GB RAM, reproducible - #39 by Colin - Bug Reports - Cursor

Topic		Replies	Views	Activity
Cursor consuming ~22 GB RAM across dozens of helper processes — IDE becomes extremely slow Bug Reports chat , performance , subagents , linear-linked	11	455	May 24, 2026
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