this post was submitted on 01 Apr 2026
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Jellyfin critical security update - This is not a joke (github.com)
submitted 4 hours ago by Mubelotix@jlai.lu to c/selfhosted@lemmy.world
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[–] Burghler@sh.itjust.works 13 points 3 hours ago (2 children)

Wonder if it's the Axios one. Sounds like it isn't from their description though hmm

[–] doeknius_gloek@discuss.tchncs.de 7 points 3 hours ago (1 children)

I don't think so, the previous release 10.11.6 is a few months old and the axios supply chain attack happened yesterday.

[–] Strit@lemmy.linuxuserspace.show 5 points 3 hours ago

So lets hope this 10.11.7 is not subject to the axios one. :)

[–] rollerbang@lemmy.world 2 points 3 hours ago (1 children)

Diff agrees, not likely. Might be permisson related, elevation of privileges.

[–] r00ty@kbin.life 2 points 1 hour ago

From a cursory look at just the security commits. Looks like the following:

  • GHSA-j2hf-x4q5-47j3: Checks if a media shortcut is empty, and checks if it is remote and stores the remote protocol if so. Also prevent strm files (these are meant to contain links to a stream) from referencing local files. Indeed this might have been used to reference files jellyfin couldn't usually see?
  • GHSA-8fw7-f233-ffr8: Seems to be similar, except for M3U file link validation and limiting allowed protocols. It also changes the default permissions for live TV management to false.
  • GHSA-v2jv-54xj-h76w: When creating a structure there should be a limit of 200 characters for a string which was not enforced.
  • GHSA-jh22-fw8w-2v9x: Not really completely sure here. They change regex to regexstr in a lot of places and it looks like some extra validation around choosing transcoding settings.

I'm not really sure how serious any of these are, or how they could be exploited however. Well aside from the local file in stream files one.