Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged index creation permissions can submit a single request containing a specially crafted, malformed custom analysis definition that is resolved recursively without a cycle or depth check, exhausting the thread stack and terminating the affected node.

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History

Thu, 13 Aug 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 13 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Elastic
Elastic elasticsearch
Vendors & Products Elastic
Elastic elasticsearch

Thu, 13 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Description Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged index creation permissions can submit a single request containing a specially crafted, malformed custom analysis definition that is resolved recursively without a cycle or depth check, exhausting the thread stack and terminating the affected node.
Title Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
Weaknesses CWE-674
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: elastic

Published:

Updated: 2026-08-13T20:28:28.205Z

Reserved: 2026-08-10T11:17:35.480Z

Link: CVE-2026-72638

cve-icon Vulnrichment

Updated: 2026-08-13T20:28:24.109Z

cve-icon NVD

Status : Received

Published: 2026-08-13T20:17:24.310

Modified: 2026-08-13T21:18:09.270

Link: CVE-2026-72638

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T21:15:03Z

Weaknesses