{
  "cveId": "CVE-2026-33218",
  "url": "https://patchblox.com/security/cve/CVE-2026-33218",
  "summary": "CVE-2026-33218 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-33218, released March 25, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "nats-server: NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system",
  "description": "NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, a client which can connect to the leafnode port can crash the nats-server with a certain malformed message pre-authentication. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, disable leafnode support if not needed or restrict network connections to the leafnode port, if plausible without compromising the service offered.",
  "published": "2026-03-25T20:16:32Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00627,
  "epssPercentile": 0.50299,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "govulncheck-vulndb",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "0.0.20260326T203309-150000.1.155.2",
      "fix": "SUSE-SU-2026:1135-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-1135-1",
      "released": "2026-03-27T17:33:48Z"
    },
    {
      "platform": "linux",
      "product": "govulncheck-vulndb",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.0.20260723T184607-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21483-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21483-1",
      "released": "2026-07-30T09:09:47Z"
    },
    {
      "platform": "linux",
      "product": "nats-server",
      "release": "Debian 14",
      "fixedVersion": "2.12.6-1",
      "fix": "DEBIAN-CVE-2026-33218",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-33218",
      "released": "2026-03-25T20:16:32Z"
    }
  ],
  "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"
  }
}