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VULNERABILITIES

CVE-2026-72683 Details

Description

A flaw in Elasticsearch allows an authenticated user with the privileges required to invoke the simulate pipeline API endpoint (https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-ingest-simulate) to submit a request that causes a self-referential data structure to be created. When a specific internal component later processes that structure, the operation recurses without bound and raises a fatal error that is not handled by the surrounding execution path, terminating the affected node process and resulting in a denial of service.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/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-8-19-19-9-3-8-9-4-4-security-update-esa-2026-75/389496 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-674Uncontrolled Recursion[email protected]

Affected Products

ProductVersions
elastic elasticsearch
>= 5.0.0, < 8.19.19
>= 9.3.0, < 9.3.8
>= 9.4.0, < 9.4.4

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-2026-72683
NVD Published Date:
Aug 13, 2026
NVD Last Modified:
Sep 1, 2026
Source:
[email protected]
CVE-2026-72683 Details - Not Deferred