Debian repository not signed

[nwa573]

Is it a bug?

• I know this is an issue with the app, and contacting Mullvad support is not relevant.

I have checked if others have reported this already

• I have checked the issue tracker to see if others have reported similar issues.

Current Behavior

I followed the instructions at https://mullvad.net/en/help/install-mullvad-app-linux to add the stable repository, but when I run sudo apt update I get

W: GPG error: https://repository.mullvad.net/deb/stable bookworm InRelease: Unknown error executing apt-key
E: The repository 'https://repository.mullvad.net/deb/stable bookworm InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Expected Behavior

sudo apt update runs successfully

Steps to Reproduce

Follow the Debian instructions at https://mullvad.net/en/help/install-mullvad-app-linux

Failure Logs

No response

Operating system version

Debian 12.7

Mullvad VPN app version

No response

Additional Information

No response

[faern]

We had apt repository server issues in parts of the world yesterday. Please try again today and see if it works better! Our repositories are signed.

[nwa573]

I'm still getting the same error. Is there any more debug info I can give you?

[strykenKN]

the same problem also exists under Ubuntu. I have already reported it here, but nobody seems to be interested, for whatever reason.