{
  "cveId": "CVE-2026-58214",
  "url": "https://patchblox.com/security/cve/CVE-2026-58214",
  "summary": "CVE-2026-58214 is fixed in nats-server on 1 platform by DEBIAN-CVE-2026-58214 (version 2.14.3-1), released July 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "nats-server: NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system",
  "description": "NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, an authenticated MQTT client could subscribe to the internal $MQTT.deliver.pubrel subject family, bypassing configured subscribe permissions and exposing MQTT QoS2 protocol metadata for sessions in the account. This issue is fixed in versions 2.14.3 and 2.12.12.",
  "published": "2026-07-08T20:16:54Z",
  "severity": "medium",
  "cvss": 4.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
  "epss": 0.00349,
  "epssPercentile": 0.28714,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "nats-server",
      "release": "Debian 14",
      "fixedVersion": "2.14.3-1",
      "fix": "DEBIAN-CVE-2026-58214",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-58214",
      "released": "2026-07-06T15:20:00Z"
    }
  ],
  "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"
  }
}