{"api_version":"1","generated_at":"2026-10-06T21:45:14+00:00","cve":"CVE-2026-102409","urls":{"html":"https://cve.report/CVE-2026-102409","api":"https://cve.report/api/cve/CVE-2026-102409.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-102409","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-102409"},"summary":{"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":"PUBLISHED","assigner":"elastic","published_at":"2026-10-06 20:17:12","updated_at":"2026-10-06 20:17:12"},"problem_types":["CWE-674","CWE-674 CWE-674 Uncontrolled Recursion"],"metrics":[{"version":"3.1","source":"security@elastic.co","type":"Secondary","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"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"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"6.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://discuss.elastic.co/t/elasticsearch-9-4-8-9-5-5-security-update-esa-2026-190/390863","name":"https://discuss.elastic.co/t/elasticsearch-9-4-8-9-5-5-security-update-esa-2026-190/390863","refsource":"security@elastic.co","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-102409","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102409","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Elastic","product":"Elasticsearch","version":"affected 9.2.0 9.2.8 semver","platforms":[]},{"source":"CNA","vendor":"Elastic","product":"Elasticsearch","version":"affected 9.3.0 9.3.8 semver","platforms":[]},{"source":"CNA","vendor":"Elastic","product":"Elasticsearch","version":"affected 9.4.0 9.4.7 semver","platforms":[]},{"source":"CNA","vendor":"Elastic","product":"Elasticsearch","version":"affected 9.5.0 9.5.4 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-102409","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-10-06T19:55:32.046618Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-10-06T19:55:40.589Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Elasticsearch","vendor":"Elastic","versions":[{"lessThanOrEqual":"9.2.8","status":"affected","version":"9.2.0","versionType":"semver"},{"lessThanOrEqual":"9.3.8","status":"affected","version":"9.3.0","versionType":"semver"},{"lessThanOrEqual":"9.4.7","status":"affected","version":"9.4.0","versionType":"semver"},{"lessThanOrEqual":"9.5.4","status":"affected","version":"9.5.0","versionType":"semver"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>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).</p>"}],"value":"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)."}],"impacts":[{"capecId":"CAPEC-130","descriptions":[{"lang":"en","value":"CAPEC-130 Excessive Allocation"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-674","description":"CWE-674 Uncontrolled Recursion","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-06T19:31:40.592Z","orgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","shortName":"elastic"},"references":[{"url":"https://discuss.elastic.co/t/elasticsearch-9-4-8-9-5-5-security-update-esa-2026-190/390863"}],"source":{"discovery":"Elastic"},"title":"Uncontrolled Recursion in Elasticsearch Leading to Denial of Service","x_generator":{"engine":"Elastic CVE Publisher 1.0.0"}}},"cveMetadata":{"assignerOrgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","assignerShortName":"elastic","cveId":"CVE-2026-102409","datePublished":"2026-10-06T19:31:40.592Z","dateReserved":"2026-09-29T02:06:02.426Z","dateUpdated":"2026-10-06T19:55:40.589Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 20:17:12","lastModifiedDate":"2026-10-06 20:17:12","problem_types":["CWE-674","CWE-674 CWE-674 Uncontrolled Recursion"],"metrics":{"cvssMetricV31":[{"source":"security@elastic.co","type":"Secondary","cvssData":{"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"},"exploitabilityScore":2.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-06T19:55:32.046618Z","id":"CVE-2026-102409","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"102409","Ordinal":"1","Title":"Uncontrolled Recursion in Elasticsearch Leading to Denial of Ser","CVE":"CVE-2026-102409","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"102409","Ordinal":"1","NoteData":"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).","Type":"Description","Title":"Uncontrolled Recursion in Elasticsearch Leading to Denial of Ser"}]}}}