{"id":"CVE-2026-115775","revision":null,"records":[{"revision":"f2a6dbb6420f441e9d0f06954f0b9db1","observedAt":"2026-10-23T21:48:20.592+00:00","statement":{"source":"cve-program","id":"CVE-2026-115775","aliases":[],"title":"Twisted: Unauthenticated Remote Denial of Service in the Twisted words domish XML Element Stream via an Unbounded Element Tree","description":"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.","state":0,"publishedAt":"2026-10-23T20:16:29.913+00:00","modifiedAt":"2026-10-23T20:16:29.913+00:00","affected":[{"ecosystem":"Vendor product","name":"twisted","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"twisted\",\n                    \"product\": \"twisted\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 26.10.0rc1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":8.7,"severity":"HIGH"}],"references":["https://github.com/twisted/twisted/security/advisories/GHSA-3476-c5c2-fr73","https://github.com/twisted/twisted/pull/12751","https://github.com/twisted/twisted/commit/8873814bec8288e2466fad4d2c4d64039beb88b0","https://github.com/twisted/twisted/releases/tag/twisted-26.10.0rc1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115775","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-115775","identifiers":["CVE-2026-115775"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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