CVE-2026-0531 MEDIUM

CVE-2026-0531: Allocation of Resources Without Limits or Throttling in Kibana Fleet

Vendor Elastic
Product Kibana
Weakness CWE-770 · Uncontrolled resource consumption
Published January 13, 2026
Last update January 13, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 13, 2026 CVE published
January 13, 2026 Record updated