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Resolved error occurred during the signature verification

Hi all,

Same issue here... but for Imunify360.

2025-06-02 06:25:27 INFO: pum is called with arguments: ['--list', '--repo-info', '--json']
/usr/lib/python3/dist-packages/apt/cache.py:562: Warning: W:An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: Index of /imunify360/ubuntu/24.04/ noble InRelease: The following signatures were invalid: 9EE467641C635726A184D64B8C55A6628608CB71 (untrusted public key algorithm: dsa1024), W:An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: Index of /ubuntu/24.04/slot-1/ noble InRelease: The following signatures were invalid: 9EE467641C635726A184D64B8C55A6628608CB71

And when I try to check for package updates in Plesk I get 'Error: Unable to receive update information for the package(s)'.

Total newbie here but wondering if the apt update list cache needs to be cleared? Don't want to try it until someone who knows what they are doing advises!

Thanks!
Same issue here for Imunify360


Code:
# apt update
...
Err:22 https://repo.imunify360.cloudlinux.com/imunify360/ubuntu/24.04 noble InRelease
  The following signatures were invalid: 9EE467641C635726A184D64B8C55A6628608CB71 (untrusted public key algorithm: dsa1024)
Fetched 525 kB in 2s (323 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
4 packages can be upgraded. Run 'apt list --upgradable' to see them.
...
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://repo.imunify360.cloudlinux.com/imunify360/ubuntu/24.04 noble InRelease: The following signatures were invalid: 9EE467641C635726A184D64B8C55A6628608CB71 (untrusted public key algorithm: dsa1024)
...
W: Failed to fetch https://repo.imunify360.cloudlinux.com/imunify360/ubuntu/24.04/dists/noble/InRelease  The following signatures were invalid: 9EE467641C635726A184D64B8C55A6628608CB71 (untrusted public key algorithm: dsa1024)
W: Some index files failed to download. They have been ignored, or old ones used instead.
N: Missing Signed-By in the sources.list(5) entry for 'http://nova.clouds.archive.ubuntu.com/ubuntu'
N: Missing Signed-By in the sources.list(5) entry for 'http://nova.clouds.archive.ubuntu.com/ubuntu'
 
Hi all, here also still recieving these errors

/etc/cron.daily/drweb-update:
ERROR: Dr.Web Updater: failed to download files !
run-parts: /etc/cron.daily/drweb-update exited with return code 105

And

2025-06-06 06:25:28 INFO: pum is called with arguments: ['--list', '--repo-info', '--json']
/usr/lib/python3/dist-packages/apt/cache.py:562: Warning: W:An error occurred during the signature verification

Advise please

Regards Tjerk
 
@Zalem Citizen As previously mentioned, CloudLinux is are aware of the issue and working on fixing it. However, I cannot provide any ETA on when that will be fixed. At this time, you can safely ignore the warnings.

@Tjerk Visser the issue you are reporting about Dr Web's update is significantly different than the one discussed in here. Kindly refer to this thread.
 
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