USN-8321-1: Papers vulnerability

Publication date

27 May 2026

Overview

Papers could be made to run programs as your login if it opened a specially crafted PDF file.


Packages

  • papers - PDF document viewer for GNOME

Details

It was discovered that Papers incorrectly handled PDF /GoToR actions. If a
user were tricked into opening a specially crafted PDF file, an attacker
could use this issue to manipulate command lines and possibly execute
arbitrary code.

It was discovered that Papers incorrectly handled PDF /GoToR actions. If a
user were tricked into opening a specially crafted PDF file, an attacker
could use this issue to manipulate command lines and possibly execute
arbitrary code.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
26.04 LTS resolute papers –  50.1-0ubuntu1.1
25.10 questing papers –  48.0-1ubuntu1.25.10.4

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


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