Kitty is a fast, feature-rich, GPU-based terminal.
Carter Sande discovered that maliciously constructed control sequences can cause Kitty to display a notification that, when clicked, can cause Kitty to execute arbitrary commands.
Kitty can produce notifications that, when clicked, can execute arbitrary commands.
Avoid clicking unexpected notifications.
All Kitty users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-terms/kitty-0.26.2"