{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:freeswitch:freeswitch:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.11.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "79e3f643ae0b22072471b262bee3aa44e94a7614"
            }
          ],
          "repo": "https://github.com/signalwire/freeswitch",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5vjg-pv56-vg4c"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-776"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45771.json"
  },
  "details": "FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.0, FreeSWITCH's bundled XML parser expands nested \u003c!ENTITY\u003e declarations without a depth or count bound, so a small DTD can describe a body that expands exponentially (\"billion laughs\"). The PIDF body of a SIP PUBLISH is fed to this parser before any digest check, letting an unauthenticated network attacker force unbounded CPU and memory consumption with a single request. This issue has been patched in version 1.11.0.",
  "id": "CVE-2026-45771",
  "modified": "2026-08-05T03:30:27.231558378Z",
  "published": "2026-06-09T15:51:49.484Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/signalwire/freeswitch/releases/tag/v1.11.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45771.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/signalwire/freeswitch/security/advisories/GHSA-5vjg-pv56-vg4c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45771"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Freeswitch Denial-of-Service in SIP PUBLISH Requests via XML Entity Expansion"
}