CVE-2026-33642 · cross-distro fix matrix

CVE-2026-33642: Kitty is a cross-platform GPU based terminal. In versions 0.46.2 and below, the handle_compose_command() function in kitty/graphics.c performs bounds validation on composition offsets using unsigned 3

Affects 1 Linux release across 1 (distro × package) combinations. First disclosed: 2026-05-19.

CVSS v3:CRITICAL · 9.9(NVD-published)

Fix per ecosystem

Each block below is a distro release where CVE-2026-33642 has a known fix. Run the listed command on that distro to remediate.

Debian trixie

Source: Debian Security Tracker

kitty→ fixed in0.41.1-2+deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y kitty
```

Are YOU affected by CVE-2026-33642?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

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