Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-42397— Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service

Quick assessment

Affected
Elastic Kibana
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Elastic kibana是荷兰Elastic公司开源的一个数据可视化平台。 Elastic Kibana 9.4.0至9.4.3版本和9.3.0至9.3.6版本存在资源管理错误漏洞，该漏洞源于资源无限制或节流分配，可能导致经过身份验证的用户通过提交特制请求导致过度资源消耗，从而使Kibana不可用。

CVSS 6.5 · Medium EPSS 0.42% · P34

Affected Version Matrix 2

VendorProduct Version RangeStatus
Elastic Kibana 9.4.0≤ 9.4.3 affected
9.3.0≤ 9.3.6 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-42397

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted request to affected Entity Analytics endpoints containing an oversized input value that causes excessive resource consumption, which may render Kibana unavailable.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Elastic Kibana 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elastic kibana是荷兰Elastic公司开源的一个数据可视化平台。 Elastic Kibana 9.4.0至9.4.3版本和9.3.0至9.3.6版本存在资源管理错误漏洞，该漏洞源于资源无限制或节流分配，可能导致经过身份验证的用户通过提交特制请求导致过度资源消耗，从而使Kibana不可用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Elastic Kibana 9.4.0 ~ 9.4.3 -

II. Public POCs for CVE-2026-42397

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-42397

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-42397 (1)

Same Patch Batch · Elastic · 2026-07-21 · 19 CVEs total

CVE-2026-56147 7.1 HIGH Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Informa
CVE-2026-63136 6.5 MEDIUM Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
CVE-2026-63263 6.5 MEDIUM Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
CVE-2026-63260 6.5 MEDIUM Uncontrolled Resource Consumption in Kibana Leading to Denial of Service
CVE-2026-63261 6.5 MEDIUM Uncontrolled Resource Consumption in Kibana Leading to Denial of Service
CVE-2026-63144 6.5 MEDIUM Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
CVE-2026-63140 6.5 MEDIUM Reachable Assertion in Elasticsearch Leading to Denial of Service
CVE-2026-63139 6.5 MEDIUM Uncontrolled Resource Consumption in Kibana Leading to Denial of Service
CVE-2026-56145 6.5 MEDIUM Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
CVE-2026-63141 6.3 MEDIUM Missing Authorization in Kibana Leading to Unauthorized Access to Cloud Connect Management
CVE-2026-56146 5.4 MEDIUM Improper Access Control in Kibana Leading to Unauthorized Data Modification and Informatio
CVE-2026-56144 5.3 MEDIUM Incorrect Authorization in Elasticsearch Leading to Information Disclosure
CVE-2026-63142 5.0 MEDIUM Incomplete List of Disallowed Inputs in Kibana Leading to Server-Side Request Forgery
CVE-2026-63143 4.3 MEDIUM Missing Authorization in Kibana Leading to Unauthorized Information Disclosure
CVE-2026-63259 4.3 MEDIUM Authorization Bypass Through User-Controlled Key in Kibana Leading to Information Disclosu
CVE-2026-49092 4.3 MEDIUM Unintended Proxy or Intermediary ('Confused Deputy') in Kibana Leading to Unauthorized Inf
CVE-2026-63145 4.3 MEDIUM Incorrect Authorization in Kibana Leading to Machine Learning Audit Log Integrity Compromi
CVE-2026-63262 4.3 MEDIUM Missing Authorization in Kibana Leading to Information Disclosure

IV. Related Vulnerabilities

Same product: Kibana
Same vendor: Elastic
Same weakness: CWE-770

V. Comments for CVE-2026-42397

No comments yet

Leave a comment