{"id":"CVE-2026-102404","title":"Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130)","summary":"Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can submit a specially crafted query that causes uncontrolled memory gro…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-400"],"vendor":"elastic","product":"elasticsearch","affected":["elasticsearch >= 8.0.0, < 8.19.23","elasticsearch >= 9.0.0, < 9.4.8","elasticsearch >= 9.5.0, < 9.5.5"],"patched":["elasticsearch 9.5.5"],"published":"2026-10-06","updated":"2026-10-13","sourceUpdated":"2026-10-13T18:50:46.900","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102404","references":[{"url":"https://discuss.elastic.co/t/elasticsearch-8-19-23-9-4-8-9-5-5-security-update-esa-2026-185/390859","label":"security@elastic.co"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-102404.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-102404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-102404"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00309,"epssPercentile":0.23625,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-06T19:57:13.886439Z"},"ingestedAt":"2026-10-06T20:16:42.470Z","slug":"CVE-2026-102404","body":"## Overview\n\nUncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can submit a specially crafted query that causes uncontrolled memory growth in the query processing engine, resulting in an out-of-memory condition that terminates the Elasticsearch node. The condition can be triggered repeatedly, including by queries embedded in shared resources, causing persistent cluster unavailability.\n\n## Affected\n\n- `elasticsearch >= 8.0.0, < 8.19.23`\n- `elasticsearch >= 9.0.0, < 9.4.8`\n- `elasticsearch >= 9.5.0, < 9.5.5`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `elasticsearch 9.5.5`\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-10-06 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-102404.json)","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}