{
  "cveId": "CVE-2026-33642",
  "url": "https://patchblox.com/security/cve/CVE-2026-33642",
  "summary": "CVE-2026-33642 is fixed in 3 products on 1 platform, first by kitty 0.15.0-1ubuntu0.2\u002Besm1, released May 19, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "kitty: Kitty is a cross-platform GPU based terminal",
  "description": "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 32-bit arithmetic that is subject to integer wrapping, potentially leading to Heap Buffer Over-Read/Write. An attacker who can write escape sequences to a kitty terminal (e.g., via a malicious file, SSH login banner, or piped content) can supply crafted x_offset/y_offset values that pass the bounds check after wrapping but cause massive out-of-bounds heap memory access in compose_rectangles(). No user interaction is required. No non-default configuration is required. The attacker only needs the ability to produce output in a kitty terminal window. This issue has been fixed in version 0.47.0.",
  "published": "2026-05-19T12:16:00Z",
  "severity": "critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00286,
  "epssPercentile": 0.2125,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "kitty",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.41.1-2\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-33642",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-33642",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "kitty",
      "release": "Debian 14",
      "fixedVersion": "0.47.0-1",
      "fix": "DEBIAN-CVE-2026-33642",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-33642",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "kitty",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.15.0-1ubuntu0.2\u002Besm1",
      "fix": "kitty 0.15.0-1ubuntu0.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-kitty-0.15.0-1ubuntu0.2-esm1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.21.2-1ubuntu0.22.04.1\u002Besm1",
      "fix": "kitty 0.21.2-1ubuntu0.22.04.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-kitty-0.21.2-1ubuntu0.22.04.1-esm1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "0.32.2-1ubuntu0.4\u002Besm1",
      "fix": "kitty 0.32.2-1ubuntu0.4\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-kitty-0.32.2-1ubuntu0.4-esm1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "0.41.1-2\u002Bdeb13u1build0.25.10.1",
      "fix": "kitty 0.41.1-2\u002Bdeb13u1build0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-kitty-0.41.1-2-deb13u1build0.25.10.1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "0.45.0-1ubuntu0.1~esm1",
      "fix": "kitty 0.45.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-kitty-0.45.0-1ubuntu0.1-esm1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.48.2-bp160.1.1",
      "fix": "OPENSUSE-SU-2026:21599-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21599-1",
      "released": "2026-08-18T15:54:56Z"
    },
    {
      "platform": "linux",
      "product": "kitty-shell-integration",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "0.32.2-1ubuntu0.4\u002Besm1",
      "fix": "kitty-shell-integration 0.32.2-1ubuntu0.4\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-kitty-shell-integration-0.32.2-1ubuntu0.4-esm1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty-shell-integration",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "0.41.1-2\u002Bdeb13u1build0.25.10.1",
      "fix": "kitty-shell-integration 0.41.1-2\u002Bdeb13u1build0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-kitty-shell-integration-0.41.1-2-deb13u1build0.25.10.1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty-shell-integration",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "0.45.0-1ubuntu0.1~esm1",
      "fix": "kitty-shell-integration 0.45.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-kitty-shell-integration-0.45.0-1ubuntu0.1-esm1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty-terminfo",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.15.0-1ubuntu0.2\u002Besm1",
      "fix": "kitty-terminfo 0.15.0-1ubuntu0.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-kitty-terminfo-0.15.0-1ubuntu0.2-esm1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty-terminfo",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "0.32.2-1ubuntu0.4\u002Besm1",
      "fix": "kitty-terminfo 0.32.2-1ubuntu0.4\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-kitty-terminfo-0.32.2-1ubuntu0.4-esm1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty-terminfo",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "0.41.1-2\u002Bdeb13u1build0.25.10.1",
      "fix": "kitty-terminfo 0.41.1-2\u002Bdeb13u1build0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-kitty-terminfo-0.41.1-2-deb13u1build0.25.10.1",
      "released": "2026-05-19T12:16:00Z"
    },
    {
      "platform": "linux",
      "product": "kitty-terminfo",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "0.45.0-1ubuntu0.1~esm1",
      "fix": "kitty-terminfo 0.45.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-kitty-terminfo-0.45.0-1ubuntu0.1-esm1",
      "released": "2026-05-19T12:16:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}