{"id":"CVE-2026-103005","revision":"ee6f3205bde947d2bc676a9ddc463e3e","records":[{"revision":"ee6f3205bde947d2bc676a9ddc463e3e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-103005","aliases":[],"title":"Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service","description":"Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with connector management privileges could cause the cluster to allocate an uncontrolled amount of memory when connector resources with an excessively large `description` field are created and subsequently accessed, exhausting available heap memory and crashing the affected node.","state":0,"publishedAt":"2026-10-06T19:31:47.862+00:00","modifiedAt":"2026-10-06T19:53:45.426+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\": \"8.12.0\",\n                            \"lessThanOrEqual\": \"8.19.22\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"version\": \"9.0.0\",\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-8-19-23-9-4-8-9-5-5-security-update-esa-2026-195/390869"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103005","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-103005","identifiers":["CVE-2026-103005"]},"retained":false,"historicalAffected":[]}],"coverage":[]}