{
  "cveId": "CVE-2026-44839",
  "url": "https://patchblox.com/security/cve/CVE-2026-44839",
  "summary": "CVE-2026-44839 is fixed in rabbitmq-server on 1 platform, first by DEBIAN-CVE-2026-44839, released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "RabbitMQ: Unsanitized vhost names allow for XSS in management UI",
  "description": "RabbitMQ is a messaging and streaming broker. From 3.7.0 to before 4.1.2 and 4.0.13,  This vulnerability is fixed in 4.1.2 and 4.0.13.",
  "published": "2026-05-27T15:16:29Z",
  "severity": "Moderate",
  "cvss": 4.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
  "cwe": "Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)",
  "epss": 0.0018,
  "epssPercentile": 0.0764,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44839",
  "fixes": [
    {
      "platform": "linux",
      "product": "rabbitmq-server",
      "release": "Debian 14",
      "fixedVersion": "4.3.0-2",
      "fix": "DEBIAN-CVE-2026-44839",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-44839",
      "released": "2026-06-24T14:07:24Z"
    },
    {
      "platform": "linux",
      "product": "rabbitmq-server",
      "release": "Fedora 43",
      "fixedVersion": "4.0.9-5.fc43",
      "fix": "FEDORA-2026-548235EA3B",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-548235ea3b",
      "released": "2026-07-30T15:25:28Z"
    },
    {
      "platform": "linux",
      "product": "rabbitmq-server",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "4.1.5-160000.2.1",
      "fix": "OPENSUSE-SU-2026:21903-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21903-1",
      "released": "2026-09-22T02:16:57Z"
    },
    {
      "platform": "linux",
      "product": "rabbitmq-server",
      "release": "sles 16.0",
      "fixedVersion": "4.1.5-160000.2.1",
      "fix": "SUSE-SU-2026:23869-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23869-1",
      "released": "2026-09-22T02:23:51Z"
    }
  ],
  "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"
  }
}