CVE-2026-63263
MEDIUM
MEDIUM
Priority: 0.03
BB Relevance:
63/100
Published: 2026-07-22
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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 (1)
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| elastic | elasticsearch | 8.0.0 – 8.19.19 |
References & Advisories (1)
Vendor Advisory