CVEvulnerability

CVE-2026-63263

6.5 MEDIUM Published 2026-07-22 Modified 2026-10-24 Official page ↗
Status
Analyzed
Published
2026-07-22
Last modified
2026-10-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-400

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.

Affected configurations

• elastic elasticsearch (>= 8.0.0 < 8.19.19) • elastic elasticsearch (>= 9.0.0 < 9.3.8) • elastic elasticsearch (>= 9.4.0 < 9.4.4)

Related

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References