CVE-2026-54057: Kovidgoyal Kitty

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Kovidgoyal Kitty: before 0.47.3 (fixed in 0.47.3)

Published 2026-06-12. Last modified 2026-06-17.