{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:kovidgoyal:kitty:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0.47.0"
              },
              {
                "fixed": "0.47.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "eadec09d499b6a1332fc75960a51abb1645d26ab"
            },
            {
              "fixed": "d20fe4d4b5860b77f507317ac0bf39242725d1ae"
            }
          ],
          "repo": "https://github.com/kovidgoyal/kitty",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-r892-cv7q-fw8x"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54056.json"
  },
  "details": "Kitty is a cross-platform GPU based terminal. In versions 0.47.0 and 0.47.1, `kitten dnd` can allow a malicious remote drag-and-drop source to overwrite or truncate arbitrary files writable by the local kitty user. Remote `text/uri-list` 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 `utils.CreateAt()` / `openat(O_RDWR|O_CREAT|O_TRUNC)` without `O_NOFOLLOW`, 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 `kitten dnd` remote drag-and-drop staging, uses different vulnerable code (`kittens/dnd/drop.go` and `tools/utils/file_at_fd.go`), and reproduces on commit `4aa4a5c0567a92553a8c20a88a4352da637fca5d`, after the file-transfer `O_NOFOLLOW` fix. Version 0.47.2 patches the issue.",
  "id": "CVE-2026-54056",
  "modified": "2026-08-12T03:51:45.493984116Z",
  "published": "2026-06-12T20:06:06.437Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54056.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/kovidgoyal/kitty/security/advisories/GHSA-r892-cv7q-fw8x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54056"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Kitty has an arbitrary file overwrite via symlink following in `kitten dnd` remote drop staging"
}