This issue (or specifically, scenario where it still happens if expired certs are allowed) is tracked here: https://github.com/apple/cups/issues/6141 It is from Aug 2023 so may be add some flair to it (like thumbs up) and hopefully CUPS devs will notice.
** Bug watch added: github.com/apple/cups/issues #6141 https://github.com/apple/cups/issues/6141 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1973441 Title: Printing does not work on Ubuntu 22.04 - cups-pki-invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1973441/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
