If you run a matrix server, it’s time to upgrade! The matrix team disclosed and patched a vulnerability today. I still haven’t found details about the actual vulnerability yet.
Bonus points that you also have to upgrade all the rooms to version 12 to be fully protected, and version 12 isn’t supported by all clients, and upgrading rooms doesn’t really upgrade the room, it creates a new room and invites the previous members to the new room and turns the former room into a pointer to the new room. And of course mod tools like draupnir have to be re-configured. 💩

