{
  "cveId": "CVE-2026-97026",
  "url": "https://patchblox.com/security/cve/CVE-2026-97026",
  "summary": "CVE-2026-97026 is fixed in flatpak on 1 platform, first by DEBIAN-CVE-2026-97026, released September 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "flatpak: Flatpak creates temporary child repository directories under the user cache with world-writable permissions (0777)",
  "description": "Flatpak creates temporary child repository directories under the user cache with world-writable permissions (0777). On multi-user systems with a permissive umask, other local users could read or modify the temporary directory used while installing apps or runtimes, potentially causing installation failures (denial of service); tampered content would fail signature/digest verification rather than being trusted.",
  "published": "2026-09-28T21:17:19Z",
  "severity": "low",
  "cvss": 3.9,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L",
  "epss": 0.00104,
  "epssPercentile": 0.01045,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "flatpak",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.16.6-1~deb13u3",
      "fix": "DEBIAN-CVE-2026-97026",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-97026",
      "released": "2026-09-29T20:26:41Z"
    },
    {
      "platform": "linux",
      "product": "flatpak",
      "release": "Debian 14",
      "fixedVersion": "1.18.4-1",
      "fix": "DEBIAN-CVE-2026-97026",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-97026",
      "released": "2026-09-29T20:26:41Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}