{"affected":[{"defaultStatus":"unaffected","product":"Elasticsearch","source":"CNA: elastic","vendor":"Elastic","versions":[{"lessThanOrEqual":"8.19.23","status":"affected","version":"8.10.0","versionType":"semver"},{"lessThanOrEqual":"9.4.8","status":"affected","version":"9.0.0","versionType":"semver"},{"lessThanOrEqual":"9.5.5","status":"affected","version":"9.5.0","versionType":"semver"}]}],"cveId":"CVE-2026-115290","cwes":["CWE-674"],"description":"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 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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7.5,"severity":"high","source":"CNA: elastic","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":7.5,"severity":"high","source":"NVD: security@elastic.co","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1793737970687,"publishedAt":1793724239960,"references":[{"source":"CNA: elastic","tags":[],"url":"https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-201/391356"},{"source":"security@elastic.co","tags":[],"url":"https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-201/391356"}],"remediation":[],"revision":"7d69e218efac1646a929f14ae9c891f32d5ba8b690fe7188d150ffeb9100acff","sources":[{"modifiedAt":1793727367924,"name":"CNA: elastic","retrievedAt":1793729329103,"url":"https://www.cve.org/CVERecord?id=CVE-2026-115290"},{"modifiedAt":1793737970687,"name":"NVD","retrievedAt":1793751682810,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115290"}],"ssvc":{"assessedAt":1793727342569,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Uncontrolled Recursion in Elasticsearch Leading to Denial of Service","updatedAt":1793751682810}