{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103005","assignerOrgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","state":"PUBLISHED","assignerShortName":"elastic","dateReserved":"2026-09-29T20:57:38.467Z","datePublished":"2026-10-06T19:31:47.862Z","dateUpdated":"2026-10-06T19:53:45.426Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Elasticsearch","vendor":"Elastic","versions":[{"status":"affected","versionType":"semver","version":"8.12.0","lessThanOrEqual":"8.19.22"},{"status":"affected","versionType":"semver","version":"9.0.0","lessThanOrEqual":"9.3.8"},{"status":"affected","versionType":"semver","version":"9.4.0","lessThanOrEqual":"9.4.7"},{"status":"affected","versionType":"semver","version":"9.5.0","lessThanOrEqual":"9.5.4"}]}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>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.</p>"}]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-789","description":"CWE-789 Memory Allocation with Excessive Size Value","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","shortName":"elastic","dateUpdated":"2026-10-06T19:31:47.862Z"},"references":[{"url":"https://discuss.elastic.co/t/elasticsearch-8-19-23-9-4-8-9-5-5-security-update-esa-2026-195/390869"}],"source":{"discovery":"Elastic"},"title":"Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service","x_generator":{"engine":"Elastic CVE Publisher 1.0.0"},"impacts":[{"capecId":"CAPEC-130","descriptions":[{"lang":"en","value":"CAPEC-130 Excessive Allocation"}]}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-06T19:53:36.232961Z","id":"CVE-2026-103005","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-06T19:53:45.426Z"}}]}}