> Not even OpenSSH maintainers noticed this, which points to a failure in their processes as well, to a lesser degree.
The OpenSSH project has nothing to do with xz.
The transitive dependency on liblzma was introduced by a patch written by a third party. [1] You can't hold OpenSSH project members accountable for something like this.
Alright, that's fair. But I mentioned them as an example. Surely liblzma is a dependency in many projects, and _none_ of them noticed anything strange, until an end user did?
This is a tragedy of the commons, and we can't place blame on a single project besides xz itself, yet we can all share part of the blame to collectively do better in the future.