OAuth + Authentik "Unsupported Operation" Error
Hello,
I am currently setting up OAuth for Immich with Authentik. I followed the guide from Authentik:
https://docs.goauthentik.io/integrations/services/immich/
Authentik logs the successful authentication.
However, the UI prints "Failed to finish oauth" and the logs state the following:
I attached the OAuth configuration.
Do you have any Idea what this "unsupported operation" could mean?
Integrate with Immich | authentik
What is Immich

11 Replies
:wave: Hey @Marvin,
Thanks for reaching out to us. Please carefully read this message and follow the recommended actions. This will help us be more effective in our support effort and leave more time for building Immich :immich:.
References
- Container Logs:
docker compose logs
docs
- Container Status: docker ps -a
docs
- Reverse Proxy: https://immich.app/docs/administration/reverse-proxy
- Code Formatting https://support.discord.com/hc/en-us/articles/210298617-Markdown-Text-101-Chat-Formatting-Bold-Italic-Underline#h_01GY0DAKGXDEHE263BCAYEGFJA
Checklist
I have...
1. :ballot_box_with_check: verified I'm on the latest release(note that mobile app releases may take some time).
2. :ballot_box_with_check: read applicable release notes.
3. :ballot_box_with_check: reviewed the FAQs for known issues.
4. :ballot_box_with_check: reviewed Github for known issues.
5. :ballot_box_with_check: tried accessing Immich via local ip (without a custom reverse proxy).
6. :ballot_box_with_check: uploaded the relevant information (see below).
7. :ballot_box_with_check: tried an incognito window, disabled extensions, cleared mobile app cache, logged out and back in, different browsers, etc. as applicable
(an item can be marked as "complete" by reacting with the appropriate number)
Information
In order to be able to effectively help you, we need you to provide clear information to show what the problem is. The exact details needed vary per case, but here is a list of things to consider:
- Your docker-compose.yml and .env files.
- Logs from all the containers and their status (see above).
- All the troubleshooting steps you've tried so far.
- Any recent changes you've made to Immich or your system.
- Details about your system (both software/OS and hardware).
- Details about your storage (filesystems, type of disks, output of commands like fdisk -l
and df -h
).
- The version of the Immich server, mobile app, and other relevant pieces.
- Any other information that you think might be relevant.
Please paste files and logs with proper code formatting, and especially avoid blurry screenshots.
Without the right information we can't work out what the problem is. Help us help you ;)
If this ticket can be closed you can use the /close
command, and re-open it later if needed.Immich server: v1.132.3
Authentik: v2025.4.0
Docker compose:
.env file contains DB password.
Successfully submitted, a tag has been added to inform contributors. :white_check_mark:
I am happy to provide additional information, if you let me know. I would really love to secure my immich instance with authentik, through your help!
@Daniel
You've been in the oauth stuff recently I think
any idea?
Please post your provider config from authentik
Yeah the authentik config will help
Authentik is hosted on https://authentik.home.marvin-fuchs.de/
I hope this helps. Let me know if anything is missing!



Try turning off the encryption key, I'm not 100% sure what it does but I saw a ticket where disabling it the other day fixed it
@schuhbacca this actually solved it! Weird, I thought I had tried this...
Thank you very much for the help!
This thread has been closed. To re-open, use the button below.