{
  "cveId": "CVE-2026-45076",
  "url": "https://patchblox.com/security/cve/CVE-2026-45076",
  "summary": "CVE-2026-45076 is fixed in matrix-synapse on 1 platform by DEBIAN-CVE-2026-45076 (version 1.152.1-1), released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "matrix-synapse: Synapse is an open source Matrix homeserver implementation",
  "description": "Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, in federated rooms, malicious homeservers can craft room events in such a way that prevents Synapse from providing full history to paginating clients. Clients could therefore fail to display room history. This vulnerability is fixed in 1.152.1.",
  "published": "2026-05-28T17:16:31Z",
  "severity": "low",
  "cvss": 2.7,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L",
  "epss": 0.00369,
  "epssPercentile": 0.30943,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "matrix-synapse",
      "release": "Debian 14",
      "fixedVersion": "1.152.1-1",
      "fix": "DEBIAN-CVE-2026-45076",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-45076",
      "released": "2026-06-24T14:07:24Z"
    }
  ],
  "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"
  }
}