CVE-2026-56150

Allocation of Resources Without Limits or Throttling (CWE-770) in Fleet Server can lead to a denial of service via Excessive Allocation (CAPEC-130). An attacker can submit a specially crafted request to an upload endpoint that causes excessive memory consumption, which may render Fleet Server unavailable.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://discuss.elastic.co/t/fleet-server-8-19-11-9-2-5-9-3-0-security-update-esa-2026-44	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:elastic:fleet_server::::::::
	cpe:2.3:a:elastic:fleet_server::::::::

History

06 Jul 2026, 18:51

Type	Values Removed	Values Added
References	~~() https://discuss.elastic.co/t/fleet-server-8-19-11-9-2-5-9-3-0-security-update-esa-2026-44 -~~	() https://discuss.elastic.co/t/fleet-server-8-19-11-9-2-5-9-3-0-security-update-esa-2026-44 - Vendor Advisory
First Time		Elastic fleet Server Elastic
CPE		cpe:2.3:a:elastic:fleet_server::::::::

01 Jul 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-01 17:16

Updated : 2026-07-06 18:51

NVD link : CVE-2026-56150

Mitre link : CVE-2026-56150

CVE.ORG link : CVE-2026-56150

JSON object : View

Products Affected

elastic

fleet_server

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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