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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| kovidgoyal | kitty | < 0.47.3 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | kitty | 0.47.3-1 | — |
| Debian 13 | kitty | 0.41.1-2+deb13u2 | — |
| Debian 12 | kitty | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | kitty | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | kitty | 0.45.0-1ubuntu0.1~esm2 | USN-8763-1 |
| Ubuntu Pro 24.04 LTS | kitty | 0.32.2-1ubuntu0.4+esm2 | USN-8763-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kitty | 0.47.3-1.1 | openSUSE-SU-2026:11021-1 |
| openSUSE Leap 16.0 | kitty | 0.48.2-bp160.1.1 | openSUSE-SU-2026:21599-1 |
Advisories 3
- USN-8763-1 kitty vulnerabilities Ubuntu Security Notices (USN) · Sep 16, 2026
- openSUSE-SU-2026:21599-1 Security update for kitty SUSE / openSUSE Security Updates · Aug 21, 2026
- openSUSE-SU-2026:11021-1 kitty-0.47.3-1.1 on GA media SUSE / openSUSE Security Updates · Jun 14, 2026