{
  "cveId": "CVE-2026-68555",
  "url": "https://patchblox.com/security/cve/CVE-2026-68555",
  "summary": "CVE-2026-68555 is fixed in coturn on 1 platform by DEBIAN-CVE-2026-68555 (version 4.18.0-1), released August 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "coturn: Coturn is a free open source implementation of TURN and STUN Server",
  "description": "Coturn is a free open source implementation of TURN and STUN Server. In 4.15.0, an authenticated TURN user can repeatedly resume one allocation from fresh UDP 5-tuples without completing a handoff when the server enables --mobility. mobile_begin_transition() in src/server/ns_turn_server.c disarms each new session\u0027s allocation timeout and overwrites the allocation\u0027s single mobile_pending_resume link, leaving earlier pending sessions unreachable by the cleanup path, while copy_auth_parameters() ignores inc_quota() failure. The attacker can therefore retain unbounded server-side sessions and exhaust process memory even when --user-quota=1 is configured. This issue is fixed in version 4.16.0.",
  "published": "2026-08-19T21:17:28Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.0053,
  "epssPercentile": 0.45106,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "coturn",
      "release": "Debian 14",
      "fixedVersion": "4.18.0-1",
      "fix": "DEBIAN-CVE-2026-68555",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-68555",
      "released": "2026-08-19T21:17:28Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}