this post was submitted on 02 Apr 2025
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Collection of potential security issues in Jellyfin This is a non exhaustive list of potential security issues found in Jellyfin. Some of these might cause controversy. Some of these are design fla...

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[–] ReversalHatchery@beehaw.org 7 points 4 days ago (1 children)

aaaand now you smart tv can't connect. none of them. the clients dont even support http basic auth creds put into the URL for some crazy reason.

for advanced HTTP-level authentication you would need to run a reverse proxy on the TV's network that would add the authentication info. for the VPN idea you would need to tunnel the TV's network's internet connection at the router. or set up a gateway address in the TVs network settings that would do that. or use a reverse proxy here too so that it repeats the request to the real server.

but honestly, this is the real and only secure way anyway. I wouldn't be comfortable to expose jellyfin even if the devs are real experts. I mean vulns get discovered, in dotnet, jellyfin dependencies, linux filesystem, and reverse proxy, and honestly who has time to always tightly keep up to date with all that.

that's not to discount the seriousness of the issue though, it's a real shame that jellyfin is so much against security

[–] t3rmit3@beehaw.org 5 points 4 days ago* (last edited 4 days ago) (1 children)

Your smart TV is (presumably) on your local network, so you should be routing the requests locally (point the client at the local ip, assuming it didn't autodiscover it) not through the VPN/ tunnel.

[–] ReversalHatchery@beehaw.org 4 points 3 days ago (2 children)

Your smart TV is (presumably) on your local network

often, but not always. sometimes the TV is at a different house, when you are a guest or at a second property

Or even just on a differently vlan that you want to go through your reverse-proxy because that is where your security features are to separate you from shit you don't trust.

[–] t3rmit3@beehaw.org 1 points 3 days ago* (last edited 3 days ago)

In which case there are still ways to make it work, like putting in an SSO bypass rule for the IP of your other property. Point is, under no circumstances is it impossible to both have it be protected against scanning attacks like the ones described in the gh issue, and keep it available to use over the internet for authorized users.