Thanks for reporting this issue.
Since the security update to CUPS to fix CVE-2026-34990, TCP connections
to localhost aren't automatically accepted as being authenticated. The
cups-pdf package needs to be updated to drop the -h option and connect
using the local socket instead. This change has already been done in
cups-pdf (3.0.2-7) and I will backport the change to cups-pdf in the
Ubuntu stable releases.
** Package changed: cups (Ubuntu) => cups-pdf (Ubuntu)
** Also affects: cups-pdf (Ubuntu Questing)
Importance: Undecided
Status: New
** Also affects: cups-pdf (Ubuntu Stonking)
Importance: Undecided
Status: New
** Also affects: cups-pdf (Ubuntu Resolute)
Importance: Undecided
Status: New
** Also affects: cups-pdf (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: cups-pdf (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: cups-pdf (Ubuntu Jammy)
Assignee: (unassigned) => Marc Deslauriers (mdeslaur)
** Changed in: cups-pdf (Ubuntu Noble)
Assignee: (unassigned) => Marc Deslauriers (mdeslaur)
** Changed in: cups-pdf (Ubuntu Questing)
Assignee: (unassigned) => Marc Deslauriers (mdeslaur)
** Changed in: cups-pdf (Ubuntu Resolute)
Assignee: (unassigned) => Marc Deslauriers (mdeslaur)
** Changed in: cups-pdf (Ubuntu Stonking)
Status: New => Fix Committed
** CVE added: https://cve.org/CVERecord?id=CVE-2026-34990
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https://bugs.launchpad.net/bugs/2156398
Title:
lpadmin breaks automatic installation
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