{"id":"CVE-2026-102409","revision":"ff4de2e3a5224fbd8e62ad0321d21cc4","records":[{"revision":"ff4de2e3a5224fbd8e62ad0321d21cc4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-102409","aliases":[],"title":"Uncontrolled Recursion in Elasticsearch Leading to Denial of Service","description":"Uncontrolled Recursion (CWE-674) in Elasticsearch can allow an authenticated user with low privileges to terminate an Elasticsearch node, resulting in denial of service, via Excessive Allocation (CAPEC-130).","state":0,"publishedAt":"2026-10-06T19:31:40.592+00:00","modifiedAt":"2026-10-06T19:55:40.589+00:00","affected":[{"ecosystem":"Vendor product","name":"Elasticsearch","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"product\": \"Elasticsearch\",\n                    \"vendor\": \"Elastic\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"version\": \"9.2.0\",\n                            \"lessThanOrEqual\": \"9.2.8\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"version\": \"9.3.0\",\n                            \"lessThanOrEqual\": \"9.3.8\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"version\": \"9.4.0\",\n                            \"lessThanOrEqual\": \"9.4.7\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"version\": \"9.5.0\",\n                            \"lessThanOrEqual\": \"9.5.4\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5,"severity":"MEDIUM"}],"references":["https://discuss.elastic.co/t/elasticsearch-9-4-8-9-5-5-security-update-esa-2026-190/390863"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-102409","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-102409","identifiers":["CVE-2026-102409"]},"retained":false,"historicalAffected":[]}],"coverage":[]}