{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "fixed": "26.10.0rc1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "fixed": "8873814bec8288e2466fad4d2c4d64039beb88b0"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "twisted-26.10.0rc1",
                "range": [
                  {
                    "fixed": "875d118c9a82a4f55a92ff399bd31f8928a52ad3"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "875d118c9a82a4f55a92ff399bd31f8928a52ad3"
            },
            {
              "fixed": "8873814bec8288e2466fad4d2c4d64039beb88b0"
            }
          ],
          "repo": "https://github.com/twisted/twisted",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3476-c5c2-fr73"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-400",
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115775.json"
  },
  "details": "Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.10.0rc1, the twisted.words.xish.domish ExpatElementStream parser allows an unauthenticated remote peer to keep a container element open while continuously adding child elements. The parser retains the unfinished stanza as an in-memory tree without a byte or element-count limit, and XMPP pre-authentication stream parsing exposes this behavior before credentials are accepted. A single connection can therefore exhaust server memory and terminate the process. This issue is fixed in version 26.10.0rc1.",
  "id": "CVE-2026-115775",
  "modified": "2026-10-25T10:30:20.848972248Z",
  "published": "2026-10-23T20:16:29.913Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/twisted/twisted/releases/tag/twisted-26.10.0rc1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115775.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/twisted/twisted/security/advisories/GHSA-3476-c5c2-fr73"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115775"
    },
    {
      "type": "FIX",
      "url": "https://github.com/twisted/twisted/commit/8873814bec8288e2466fad4d2c4d64039beb88b0"
    },
    {
      "type": "FIX",
      "url": "https://github.com/twisted/twisted/pull/12751"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Twisted: Unauthenticated Remote Denial of Service in the Twisted words domish XML Element Stream via an Unbounded Element Tree"
}