CVE-2026-0531
Unknown Unknown - Not Provided
Resource Exhaustion in Kibana Fleet via Bulk Retrieval Requests

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: Elastic

Description
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 Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-01-13
Last Modified
2026-01-13
Generated
2026-06-16
AI Q&A
2026-01-14
EPSS Evaluated
2026-06-15
NVD
CVE-2026-0531
EUVD
EUVD-2026-2038
Affected Vendors & Products
Showing 7 associated CPEs
Vendor Product Version / Range
elastic kibana From 7.10.0 (inc) to 7.17.29 (inc)
elastic kibana From 8.0.0 (inc) to 8.19.9 (inc)
elastic kibana From 9.0.0 (inc) to 9.1.9 (inc)
elastic kibana From 9.2.0 (inc) to 9.2.3 (inc)
elastic kibana 8.19.10
elastic kibana 9.1.10
elastic kibana 9.2.4
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Compliance Impact

The provided information does not specify how this vulnerability affects compliance with common standards and regulations such as GDPR or HIPAA.

Executive Summary

This vulnerability in Kibana Fleet (CVE-2026-0531) involves allocation of resources without limits or throttling (CWE-770). An attacker with low-level privileges equivalent to the viewer role can send a specially crafted bulk retrieval request that causes redundant database retrieval operations. This excessive memory consumption leads to the server crashing and becoming unavailable to all users, resulting in a denial of service. [1]

Impact Analysis

The vulnerability can cause the Kibana server to crash and become unavailable due to excessive memory consumption triggered by a crafted request. This results in denial of service, impacting the availability of the application for all users. [1]

Mitigation Strategies

The immediate step to mitigate this vulnerability is to upgrade Kibana to a fixed version. The issue is resolved in Kibana versions 8.19.10, 9.1.10, and 9.2.4. There are no workarounds available for users unable to upgrade. [1]

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-0531. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart