Cursor CLI cannot be installed, installer tried to download asset that 403's

Support Bug Reports
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1

Where does the bug appear (feature/product)?

Cursor CLI

Describe the Bug

The CLI can no longer be installed.

curl Cursor · CLI -fsS | bash

Results in trying to download from https://downloads.cursor.com/lab/2026.03.24-933d5a6/linux/x64/agent-cli-package.tar.gz

Which results in a 403 error in CI and on my local.

image

Steps to Reproduce

Follow the instructions here: CLI Installation | Cursor Docs

The installer will attempt to DL https://downloads.cursor.com/lab/2026.03.24-933d5a6/linux/x64/agent-cli-package.tar.gz

Which will return a 403

Expected Behavior

That it works and that the installer is valid

Operating System

Windows 10/11
Linux

Version Information

N/A
N/A
N/A
N/A

Does this stop you from using Cursor

Yes - Cursor is unusable

4 Likes
Cursor CLI installation fails (403 while downloading artifact) for latest versions (linux/arm64 & linux/x64 architectures)
Cursor CLI installation fails (403 while downloading artifact) for latest versions (linux/arm64 & linux/x64 architectures)
403 error for 2026.03.24-933d5a6 release
3

This effectively makes the CLI unusable and untrustworthy in a CI environment if it can stop working so abruptly (ie. for the same kind of things you would use claude code for to create automatons in transient environments in reaction to triggers/events)

We should be able to pin a version of the CLI for installation, and not rely on this method, which can shut down pipelines and automations overnight. IMHO this should be a hard requirement for any CLI.

4 Likes
4

agent update failed with the same error:

agent update

Checking for updates...
Latest version available: 2026.03.24-933d5a6
curl: (56) The requested URL returned error: 403

Error: Update failed: Download failed: Download failed (curl exit 56)
6

Hey, thanks for the report. I can see the screenshot showing a 403 error.

Confirmed: the URL https://downloads.cursor.com/lab/2026.03.24-933d5a6/linux/x64/agent-cli-package.tar.gz does return 403. This is on our side, the artifact for that version isn’t available on the CDN. I’m escalating this to the team.

On CLI version pinning, I agree. It’s important for CI environments. I’ll pass that feedback along with the bug report.

I’ll post an update here once I have one.

9

Where does the bug appear (feature/product)?

Cursor CLI

Describe the Bug

cursor installation fails - downloads.cursor.com returns 403 for lab/2026.03.24-933d5a6/linux/x64/agent-cli-package.tar.gz

Steps to Reproduce

curl Cursor · CLI | bash

Expected Behavior

new version to be installed

Operating System

MacOS

Version Information

2026.03.24-933d5a6

Does this stop you from using Cursor

Yes - Cursor is unusable

11

Same, was planning to test it out, but turns out it is not usable…

1 Like
13

For install of linux version the same issue arises. How to downgrade in the meanwhile?

14

How to downgrade in the meanwhile? Here is a duplicate issue btw 403 error for 2026.03.24-933d5a6 release

15

save issue here, was going to try cursor cli on mac os and after installation , the command ‘agent’ shows not found.

16

I’m facing the same error on agent update.

The log:

agent update
Checking for updates...
Latest version available: 2026.03.24-933d5a6
curl: (56) The requested URL returned error: 403

Error: Update failed: Download failed: Download failed (curl exit 56)
1 Like
17

I am also facing same issue

curl -L Cursor · CLI | bash
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 0 0 0 0 0 0 0 --:–:-- --:–:-- --:–:-- 0
Cursor Agent Installer

                        ✓ Detected linux/x64
          :✓ Directory created

▸ Downloading Cursor Agent package…
Download URL: https://downloads.cursor.com/lab/2026.03.24-933d5a6/linux/x64/agent-cli-package.tar.gz
–:-- --:–:-- --:–:-- 12708
curl: (22) The requested URL returned error: 403

gzip: stdin: unexpected end of file
tar: Child returned status 1
tar: Error is not recoverable: exiting now
✗ Download failed. Please check your internet connection and try again.
✗ If the problem persists, the package might not be available for linux/x64.

18

Any workaround for this? We have critical systems that are down now

1 Like
19

This https://downloads.cursor.com/lab/2026.03.20-44cb435/linux/x64/agent-cli-package.tar.gz seems to be accessible. Maybe there is a newer one. Install that according to what the script does. See cursor cli docs. Also, when it works, pin the version in critical systems so you dont get unwanted version drift.

1 Like
21

Where does the bug appear (feature/product)?

Cursor CLI

Describe the Bug

the cursor CLI installation for the latest version (2026.03.24-933d5a6) is failing as the download fails for the installation artifact.
I have tried downloading it for linux/arm64 and linux/x64 architectures.

please note: I was able to download and install the previous versions like 2026.02.27-e7d2ef6 (with the same Dockerfile).

Is cursor not supported for certain architectures now?
or Am I doing something wrong?
I would really appreciate any kind of support.
Thanks

here is my Dockerfile for the reference:

FROM python:3.11-slim as builder
WORKDIR /app
COPY pyproject.toml .
RUN pip install --no-cache-dir --upgrade pip &&
pip install --no-cache-dir build &&
pip install --no-cache-dir .

FROM python:3.11-slim
WORKDIR /app
RUN apt-get update && apt-get install -y
git
curl
vim
jq
&& rm -rf /var/lib/apt/lists/*

ENV HOME=/root
RUN curl -fsSL Cursor · CLI | bash &&
mv /root/.local/bin/cursor-agent /usr/local/bin/cursor &&
chmod +x /usr/local/bin/cursor

COPY --from=builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=builder /usr/local/bin /usr/local/bin
COPY . .

RUN mkdir -p /data/repos && chmod 777 /data/repos
EXPOSE 8000
CMD [“uvicorn”, “src.app.main:app”, “–host”, “0.0.0.0”, “–port”, “8000”]

Steps to Reproduce

try to spin up the container with the above given Dockerfile.

Expected Behavior

the cursor cli is installed in the container.

Screenshots / Screen Recordings

cursor-issue.png
cursor-issue.png1733×519 49.5 KB

Operating System

MacOS

Version Information

2026.03.24-933d5a6

Does this stop you from using Cursor

Yes - Cursor is unusable

2 Likes
22

Hello. Having the same issue in our production systems. Do you have any updates or ETA for the fix?

3 Likes
23

Hey there, this is a known issue – the CLI package for version 2026.03.24-933d5a6 isn’t available on our CDN right now, which is why the versions directory ends up empty. The installer unfortunately doesn’t surface the download failure properly on Mac (shows green checkmarks despite the download failing silently).

Our infrastructure team is working to publish the artifact. If you have a previously cached CLI version at ~/.local/share/cursor-agent/versions/, you can point your symlink there as a temporary workaround. Will follow up when the fix is deployed.

hey guys, here is the current answer

2 Likes
25

Hey everyone!

Apologies for the disruption here. The issue has been resolved. Please try installing again.

5 Likes