Plex auth popup does not use the stored clientId

[PearsonFlyer]

Description

During the Plex auth popup process, Seerr is not including the stored clientId from the config files. This causes every browser to generate its own unique clientId. This clientId is not expected by Plex, which makes Plex return a blank auth response, which locks the users out. This can be seen here:

root@Plex:/mnt/cache/appdata/swag/nginx/proxy-confs# curl -s http://localhost:5056/api/v1/settings/public | python3 -m json.tool | grep -i "client\|plex"
    "applicationUrl": "https://request.myplex.com/",
    "newPlexLogin": false,```

If the auth process passed in the stored clientId, this would allow Plex to see a previously authenticated client ID and complete the OAuth process.

Version

2.7.3

Steps to Reproduce

1. Go to Seerr
2. Click Authenticate with Plex
3. Approve the authentication in the Plex popup
4. Look at the empty response from the POST in Network dev tools
5. Not be logged into Seerr or get past the login page

I have tried nightly, your own container and hotio's container. All behave the same way.

Screenshots

response - See "authToken:null"

{"id":1589111464,"code":"u4fsabbj9zomh3j6i2nimg2a3","product":"Jellyseerr","trusted":false,"qr":"https://plex.tv/api/v2/pins/qr/u4fsabbj9zomh3j6i2nimg2a3","clientIdentifier":"8cfe391f-b8d8-40ab-b453-734967d5b36d","location":{"code":"US","european_union_member":false,"continent_code":"NA","country":"United States","city":"none","time_zone":"Etc/UTC","postal_code":"none","in_privacy_restricted_country":false,"in_privacy_restricted_region":false,"subdivisions":"New York","coordinates":"redacted3, redacted"},"expiresIn":1800,"createdAt":"2026-03-20T19:19:34Z","expiresAt":"2026-03-20T19:49:34Z","authToken":null,"newRegistration":null}

Logs

Seerr is not logging the response because it's not getting a successful response.

Platform

desktop

Database

SQLite (default)

Device

Unraid 7.2.4

Operating System

Unraid 7.2.4

Browser

Firefox

Additional Context

I did try to work through this issue 2 weeks ago with the Seerr team in discord, but we couldn't figure it out. I have since discovered more information to help troubleshoot, and narrowed it down to this null response issue.

Search Existing Issues

• Yes, I have searched existing issues.

Code of Conduct

• I agree to follow Seerr's Code of Conduct

[github-actions]

Possible duplicate detected

This issue may be a duplicate of the following (detected via semantic similarity + LLM review):

• Application insists on Jellyfin when I use Plex #2506 (68% match) — Application insists on Jellyfin when I use Plex
• Plex shared users cannot sign in and “Import Plex Users” shows none (Seerr says users have no access) #2573 (65% match) — Plex shared users cannot sign in and “Import Plex Users” shows none (Seerr says users have no access)
• Plex Watchlist retrieves data from only one account. #2583 (63% match) — Plex Watchlist retrieves data from only one account.

A maintainer will review this. If this is not a duplicate, no action is needed.

[PearsonFlyer]

I don't believe that any of those 3 listed items are duplicates of this issue.

[tylergibson]

+1 I have been unable to use seerr/overseerr for better part of 4 months now.

[fallenbagel]

+1 I have been unable to use seerr/overseerr for better part of 4 months now.

Theres a workaround iirc. You can edit settings.json and add in the machineid yourself. Atleast that fixed it for 3 people who faced this.

CC: @0xSysR3ll right?

[0xSysR3ll]

Theres a workaround iirc. You can edit settings.json and add in the machineid yourself. Atleast that fixed it for 3 people who faced this.

CC: @0xSysR3ll right?

Yes that's correct.

[0xSysR3ll]

@PearsonFlyer @tylergibson I can push a preview image with the fix if you'd like to test.

[blakey108]

i am having this issue on the latest version