{"id":"CVE-2026-115290","title":"Uncontrolled Recursion in Elasticsearch Leading to Denial of Service","summary":"Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230). An unauthenticated attacker with network access to the remote cluster server interface of a node can se…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-674"],"vendor":"Elastic","product":"Elasticsearch","affected":["Elasticsearch >= 8.10.0 <= 8.19.23","Elasticsearch >= 9.0.0 <= 9.4.8","Elasticsearch >= 9.5.0 <= 9.5.5"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-11-03T17:35:42.569226Z"},"exploitAvailable":true,"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T17:36:07.924Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115290","references":[{"url":"https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-201/391356"}],"tags":["cve.org","exploit-available"],"epss":0.00413,"epssPercentile":0.35709,"exploits":{"github":1,"githubRepos":["https://github.com/googlesky/CVE-2026-115290"],"checkedAt":"2026-11-05T20:33:42.452Z"},"ingestedAt":"2026-11-05T20:33:06.324Z","slug":"CVE-2026-115290","body":"## Overview\n\nUncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230). An unauthenticated attacker with network access to the remote cluster server interface of a node can send a specially crafted request that causes the node to terminate. No credentials are required. The attacker can repeat the request against each reachable node.\n\n## Affected\n\n- `Elasticsearch >= 8.10.0 <= 8.19.23`\n- `Elasticsearch >= 9.0.0 <= 9.4.8`\n- `Elasticsearch >= 9.5.0 <= 9.5.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}