{
  "cveId": "CVE-2026-96276",
  "url": "https://patchblox.com/security/cve/CVE-2026-96276",
  "summary": "CVE-2026-96276 is fixed in flatpak on 1 platform, first by DEBIAN-CVE-2026-96276, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "flatpak: If a malicious SDK container declares an extension point with a crafted \u0060directory\u0060 path, and a developer runs \u0060flatp...",
  "description": "If a malicious SDK container declares an extension point with a crafted \u0060directory\u0060 path, and a developer runs \u0060flatpak build-init --writable-sdk --sdk-extension\u0060 with that SDK, attacker-chosen files could be written outside the working directory, since the target path is resolved via a function that allows \u0060..\u0060 traversal.",
  "published": "2026-09-23T15:17:32Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
  "epss": 0.00436,
  "epssPercentile": 0.38133,
  "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~deb13u2",
      "fix": "DEBIAN-CVE-2026-96276",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-96276",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "flatpak",
      "release": "Debian 14",
      "fixedVersion": "1.18.1-1",
      "fix": "DEBIAN-CVE-2026-96276",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-96276",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "flatpak",
      "release": "sles 15.6",
      "fixedVersion": "1.16.6-150600.3.12.1",
      "fix": "SUSE-SU-2026:4944-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4944-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "flatpak",
      "release": "sles 15.7",
      "fixedVersion": "1.16.6-150600.3.12.1",
      "fix": "SUSE-SU-2026:4944-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4944-1",
      "released": "2026-11-07T00:43:02Z"
    }
  ],
  "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"
  }
}