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VULNERABILITIES

CVE-2026-56149 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:4.9 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-43 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-770Allocation of Resources Without Limits or Throttling[email protected]

Affected Products

ProductVersions
elastic elasticsearch
>= 8.0.0, < 8.19.17
>= 9.0.0, < 9.3.6
>= 9.4.0, < 9.4.3

CPE

  • cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-56149
NVD Published Date:
Jul 1, 2026
NVD Last Modified:
Jul 2, 2026
Source:
[email protected]
CVE-2026-56149 Details - Not Deferred