CVE-2026-49090

MEDIUM

Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service

Title source: cna

Description

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted bulk request that causes sustained high CPU consumption, which can render the affected node unable to process requests.

References (1)

Core 1

Core References

https://discuss.elastic.co/t/elasticsearch-7-17-24-8-15-0-security-update-esa-2026-52

Scores

CVSS v3 6.5

EPSS 0.0025

EPSS Percentile 16.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-400

Status published

Products (3)

Elastic/Elasticsearch 7.0.0 - 7.17.23

elastic/elasticsearch 7.0.0 - 7.17.24

Elastic/Elasticsearch 8.0.0 - 8.14.3

Published Jul 01, 2026

Tracked Since Jul 01, 2026