Latest version of cursor CLI index.js hitting 100% cpu

Support Bug Reports
, ,
1

Where does the bug appear (feature/product)?

Cursor CLI

Describe the Bug

New version of cursor CLI (version 2026.04.13-a9d7fb5) becoming unresponsive running 100% cpu .
As soon as the CLI starts it launches multiple threads running index.js, all hitting 100% cpu. CLI is slow and agent is unable to answer simple questions.

Steps to Reproduce

Run a Podman (Docker) container with bind mount for .cursor directory.

#
# Run a Docker (Podman) container with bind mount for .cursor directory.
podman run \
    --rm \
    --tty \
    --interactive \
    ...
    --volume "${HOME}/.cursor:/root/.cursor:rw,Z" \
    ...
    ghcr.io/ivoa/calycopis/developer-tools:2026.04.12 \
        bash

#
# Download and run Cursor CLI inside the container.
curl https://cursor.com/install -fsS | bash

agent

Expected Behavior

Normal behaviour is Cursor CLI ready to respond to commands.
Been running Cursor CLI in Podman containers for couple of months, not had any problems until today.

Operating System

Linux

Version Information

CLI Version 2026.04.13-a9d7fb5
Model Opus 4.6 1M Thinking
Subscription Tier Pro+
OS linux (x64)

Additional Information

Cursor CLI is run inside a Podman container which is triggering SELinux alerts on the host system. “SELinux is preventing bwrap from mounton access on the directory /newroot/proc”.
We have been running Cursor CLI in containers for couple of months and haven’t seen these before, so might be related.

Does this stop you from using Cursor

Yes - Cursor is unusable

5

Hey, this is a known regression in the CLI version 2026.04.13-a9d7fb5. There have been a few reports of the same issue in the last 24 hours:

The team is aware of it. While they’re investigating, you can try rolling back to the previous CLI version 2026.03.20-7da3412. Another user confirmed it worked fine there.

About the SELinux alerts with bwrap, that’s most likely a side effect of sandboxing in the container, not the root cause. The CPU spike also reproduces outside containers.

Let me know if the rollback helps.