CVE-2026-0531

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana Fleet can lead to Excessive Allocation (CAPEC-130) via a specially crafted bulk retrieval request. This requires an attacker to have low-level privileges equivalent to the viewer role, which grants read access to agent policies. The crafted request can cause the application to perform redundant database retrieval operations that immediately consume memory until the server crashes and becomes unavailable to all users.

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/kibana-8-19-10-9-1-10-9-2-4-security-update-esa-2026-04/384522	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:elastic:kibana::::::::
	cpe:2.3:a:elastic:kibana::::::::
	cpe:2.3:a:elastic:kibana::::::::
	cpe:2.3:a:elastic:kibana::::::::

History

22 Jan 2026, 19:59

Type	Values Removed	Values Added
CPE		cpe:2.3:a:elastic:kibana::::::::
References	~~() https://discuss.elastic.co/t/kibana-8-19-10-9-1-10-9-2-4-security-update-esa-2026-04/384522 -~~	() https://discuss.elastic.co/t/kibana-8-19-10-9-1-10-9-2-4-security-update-esa-2026-04/384522 - Vendor Advisory
First Time		Elastic Elastic kibana

13 Jan 2026, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-13 21:15

Updated : 2026-01-22 19:59

NVD link : CVE-2026-0531

Mitre link : CVE-2026-0531

CVE.ORG link : CVE-2026-0531

JSON object : View

Products Affected

elastic

kibana

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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