kitty: Kitty is a cross-platform GPU based terminal
CVE-2026-33633 is fixed in 3 products on 1 platform, first by kitty 0.15.0-1ubuntu0.2+esm1, released May 19, 2026. It is not reported as exploited. Patch Radar priority: High.
Kitty is a cross-platform GPU based terminal. Versions 0.46.2 and below contain a heap buffer overflow in load_image_data() that allows any process which can write to the terminal's stdin to crash kitty immediately. The vulnerability is triggered by a single APC graphics protocol command with a PNG format declaration (f=100) whose payload exceeds twice the initial buffer capacity. The overflow is attacker-controlled in both length and content, causing DoS and potentially escalation to RCE itself. This issue has been fixed in version 0.47.0.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| kitty · Debian 13.5 (trixie) | 0.41.1-2+deb13u1 | DEBIAN-CVE-2026-33633 | May 27, 2026 |
| kitty · Debian 14 | 0.47.0-1 | DEBIAN-CVE-2026-33633 | May 27, 2026 |
| kitty · Ubuntu 20.04 LTS (focal) | 0.15.0-1ubuntu0.2+esm1 | kitty 0.15.0-1ubuntu0.2+esm1 | May 19, 2026 |
| kitty · Ubuntu 22.04.1 LTS (jammy) | 0.21.2-1ubuntu0.22.04.1+esm1 | kitty 0.21.2-1ubuntu0.22.04.1+esm1 | May 19, 2026 |
| kitty · Ubuntu 24.04.5 LTS (noble) | 0.32.2-1ubuntu0.4+esm1 | kitty 0.32.2-1ubuntu0.4+esm1 | May 19, 2026 |
| kitty · Ubuntu 25.10 (questing) | 0.41.1-2+deb13u1build0.25.10.1 | kitty 0.41.1-2+deb13u1build0.25.10.1 | May 19, 2026 |
| kitty · Ubuntu 26.04.1 LTS (resolute) | 0.45.0-1ubuntu0.1~esm1 | kitty 0.45.0-1ubuntu0.1~esm1 | May 19, 2026 |
| kitty · opensuse-leap 16.0 | 0.48.2-bp160.1.1 | OPENSUSE-SU-2026:21599-1 | Aug 18, 2026 |
| kitty-shell-integration · Ubuntu 24.04.5 LTS (noble) | 0.32.2-1ubuntu0.4+esm1 | kitty-shell-integration 0.32.2-1ubuntu0.4+esm1 | May 19, 2026 |
| kitty-shell-integration · Ubuntu 25.10 (questing) | 0.41.1-2+deb13u1build0.25.10.1 | kitty-shell-integration 0.41.1-2+deb13u1build0.25.10.1 | May 19, 2026 |
| kitty-shell-integration · Ubuntu 26.04.1 LTS (resolute) | 0.45.0-1ubuntu0.1~esm1 | kitty-shell-integration 0.45.0-1ubuntu0.1~esm1 | May 19, 2026 |
| kitty-terminfo · Ubuntu 20.04 LTS (focal) | 0.15.0-1ubuntu0.2+esm1 | kitty-terminfo 0.15.0-1ubuntu0.2+esm1 | May 19, 2026 |
| kitty-terminfo · Ubuntu 24.04.5 LTS (noble) | 0.32.2-1ubuntu0.4+esm1 | kitty-terminfo 0.32.2-1ubuntu0.4+esm1 | May 19, 2026 |
| kitty-terminfo · Ubuntu 25.10 (questing) | 0.41.1-2+deb13u1build0.25.10.1 | kitty-terminfo 0.41.1-2+deb13u1build0.25.10.1 | May 19, 2026 |
| kitty-terminfo · Ubuntu 26.04.1 LTS (resolute) | 0.45.0-1ubuntu0.1~esm1 | kitty-terminfo 0.45.0-1ubuntu0.1~esm1 | May 19, 2026 |
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