A kitty security update has been released for Debian GNU/Linux 10 to address a security issue that allows to execute shell commands when displaying a file with cat.

DSA 4819-1: kitty security update

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Debian Security Advisory DSA-4819-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
December 26, 2020   https://www.debian.org/security/faq
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Package : kitty
CVE ID : CVE-2020-35605

Stephane Chauveau discovered that the graphics protocol implementation in
Kitty, a GPU-based terminal emulator, did not sanitise a filename when
returning an error message, which could result in the execution of
arbitrary shell commands when displaying a file with cat.

For the stable distribution (buster), this problem has been fixed in
version 0.13.3-1+deb10u1.

We recommend that you upgrade your kitty packages.

For the detailed security status of kitty please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/kitty

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://www.debian.org/security/