{
  "cveId": "CVE-2026-54056",
  "url": "https://patchblox.com/security/cve/CVE-2026-54056",
  "summary": "CVE-2026-54056 is fixed in kitty on 1 platform by DEBIAN-CVE-2026-54056 (version 0.47.3-1), released June 24, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "kitty: Kitty is a cross-platform GPU based terminal",
  "description": "Kitty is a cross-platform GPU based terminal. In versions 0.47.0 and 0.47.1, \u0060kitten dnd\u0060 can allow a malicious remote drag-and-drop source to overwrite or truncate arbitrary files writable by the local kitty user. Remote \u0060text/uri-list\u0060 drops are staged in a temporary directory, but on case-sensitive filesystems duplicate remote basenames are not de-duplicated. An attacker can first create a staged symlink and then send a same-name regular-file entry. The regular-file write uses \u0060utils.CreateAt()\u0060 / \u0060openat(O_RDWR|O_CREAT|O_TRUNC)\u0060 without \u0060O_NOFOLLOW\u0060, so it follows the attacker-created symlink and writes outside the staging directory before final overwrite confirmation runs. This appears related in class to the file-transfer symlink advisory, but it is a different bug: it affects \u0060kitten dnd\u0060 remote drag-and-drop staging, uses different vulnerable code (\u0060kittens/dnd/drop.go\u0060 and \u0060tools/utils/file_at_fd.go\u0060), and reproduces on commit \u00604aa4a5c0567a92553a8c20a88a4352da637fca5d\u0060, after the file-transfer \u0060O_NOFOLLOW\u0060 fix. Version 0.47.2 patches the issue.",
  "published": "2026-06-12T21:16:24Z",
  "severity": "high",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L",
  "epss": 0.00268,
  "epssPercentile": 0.1904,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "kitty",
      "release": "Debian 14",
      "fixedVersion": "0.47.3-1",
      "fix": "DEBIAN-CVE-2026-54056",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54056",
      "released": "2026-06-24T14:07:24Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}