VULNERABILITY INTELLIGENCE

CVE-2026-63263

CVSS score6.5 MEDIUM
EPSS probability0.47%
CISA KEVNot currently listed
Published2026-07-22
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Exponential Data Expansion (CAPEC-197). An authenticated user may submit a specially crafted query to the ES|QL engine that causes exponential CPU consumption during query evaluation. Because the resource exhaustion persists beyond query completion, repeated requests can fully exhaust the available query worker resources, rendering ES|QL queries unavailable until the node is restarted.

Weakness classification

  • CWE-400: Uncontrolled Resource Consumption

Primary references