{
  "cveId": "CVE-2026-33179",
  "url": "https://patchblox.com/security/cve/CVE-2026-33179",
  "summary": "CVE-2026-33179 is fixed in fuse3 on 1 platform by DEBIAN-CVE-2026-33179 (version 3.18.2-1), released March 20, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "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 NULL pointer dereference and memory leak in fuse_uring_init_queue allows a local user to crash the FUSE daemon or cause resource exhaustion. When numa_alloc_local fails during io_uring queue entry setup, the code proceeds with NULL pointers. When fuse_uring_register_queue fails, NUMA allocations are leaked and the function incorrectly returns success. Only the io_uring transport is affected; the traditional /dev/fuse path is not affected. PoC confirmed with AddressSanitizer/LeakSanitizer. This issue has been patched in version 3.18.2.",
  "published": "2026-03-20T21:17:16Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00204,
  "epssPercentile": 0.10484,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "fuse3",
      "release": "Debian 14",
      "fixedVersion": "3.18.2-1",
      "fix": "DEBIAN-CVE-2026-33179",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-33179",
      "released": "2026-03-20T21:17:16Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}