{
  "cveId": "CVE-2026-73252",
  "url": "https://patchblox.com/security/cve/CVE-2026-73252",
  "summary": "CVE-2026-73252 is fixed in mongoose on 1 platform by DEBIAN-CVE-2026-73252 (version 7.23\u002Bds-1), released August 19, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "mongoose: Mongoose is an embedded web server and network library",
  "description": "Mongoose is an embedded web server and network library. Prior to 7.23, the built-in TLS stack selected by MG_TLS_BUILTIN in src/tls_builtin.c accepts a TLS 1.3 record whose decrypted size is exactly the 16-byte authentication tag with no plaintext or ContentType byte. In mg_tls_recv_record(), the msgsz length check permits that record and the recv_len calculation underflows to SIZE_MAX, so a later handshake step treats stale buffer contents as a trusted message with an effectively unbounded length. An unauthenticated malicious TLS peer can trigger a heap out-of-bounds read before certificate or Finished validation, causing a remote denial of service. This issue is fixed in version 7.23.",
  "published": "2026-10-14T19:17:19Z",
  "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": 0.00376,
  "epssPercentile": 0.31821,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "mongoose",
      "release": "Debian 14",
      "fixedVersion": "7.23\u002Bds-1",
      "fix": "DEBIAN-CVE-2026-73252",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-73252",
      "released": "2026-08-19T23:17:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}