{
  "cveId": "CVE-2026-33150",
  "url": "https://patchblox.com/security/cve/CVE-2026-33150",
  "summary": "CVE-2026-33150 is fixed in fuse3 on 1 platform by DEBIAN-CVE-2026-33150 (version 3.18.2-1), released March 20, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "fuse3: libfuse is the reference implementation of the Linux FUSE",
  "description": "libfuse is the reference implementation of the Linux FUSE. From version 3.18.0 to before version 3.18.2, a use-after-free vulnerability in the io_uring subsystem of libfuse allows a local attacker to crash FUSE filesystem processes and potentially execute arbitrary code. When io_uring thread creation fails due to resource exhaustion (e.g., cgroup pids.max), fuse_uring_start() frees the ring pool structure but stores the dangling pointer in the session state, leading to a use-after-free when the session shuts down. The trigger is reliable in containerized environments where cgroup pids.max limits naturally constrain thread creation. This issue has been patched in version 3.18.2.",
  "published": "2026-03-20T21:17:15Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00322,
  "epssPercentile": 0.25368,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "fuse3",
      "release": "Debian 14",
      "fixedVersion": "3.18.2-1",
      "fix": "DEBIAN-CVE-2026-33150",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-33150",
      "released": "2026-03-20T21:17:15Z"
    }
  ],
  "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"
  }
}