CVE-2026-54057

Name	CVE-2026-54057
Description	Kitty is a cross-platform GPU based terminal. In versions prior to 0.47.3, kitty's OSC 21 (color-control) query reply reflects attacker-controlled bytes, including newlines, into the shell's input without sanitization. Version 0.47.3 fixes the issue.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1139898

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
kitty (PTS)	bullseye	0.19.3-1	vulnerable
	bullseye (security)	0.19.3-1+deb11u1	vulnerable
	bookworm	0.26.5-5	vulnerable
	trixie	0.41.1-2	vulnerable
	trixie (security)	0.41.1-2+deb13u1	vulnerable
	forky, sid	0.47.0-3	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
kitty	source	(unstable)	(unfixed)			1139898

https://github.com/kovidgoyal/kitty/security/advisories/GHSA-5gmr-9gwg-hhq6