A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the scope of the existing memory accounting controls that were intended to constrain it. The resulting out-of-memory condition is fatal and terminates the affected node process, causing a denial of service.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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

Type Values Removed Values Added
Description A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the scope of the existing memory accounting controls that were intended to constrain it. The resulting out-of-memory condition is fatal and terminates the affected node process, causing a denial of service.
Title Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service
Weaknesses CWE-770
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

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: elastic

Published:

Updated: 2026-08-13T20:35:10.991Z

Reserved: 2026-08-10T11:17:58.731Z

Link: CVE-2026-72684

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-13T20:17:29.100

Modified: 2026-08-13T20:17:29.100

Link: CVE-2026-72684

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses