CVE-2026-56149

CVSS Score & Metrics

Base Score

4.9 / 10

Vector String

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

Vulnerability Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.

Vulnerability Details

Published Date

July 01, 2026

Last Modified

July 02, 2026

CWE ID

CWE-770

Source

NVD

Vendor

elastic

Product

elasticsearch

External References

https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-43

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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