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CVE-2026-4498— Execution with Unnecessary Privileges in Kibana Leading to reading index data beyond their direct Elasticsearch RBAC scope

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 Fleet是荷兰Elastic公司的一个集中管理和监控Elastic Agent的组件。 Elastic Kibana Fleet存在安全漏洞，该漏洞源于不必要的权限执行，可能导致权限滥用和越权读取索引数据。

CVSS 7.7 · High EPSS 0.50% · P40
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I. Basic Information for CVE-2026-4498

Vulnerability Information
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Vulnerability Title
Execution with Unnecessary Privileges in Kibana Leading to reading index data beyond their direct Elasticsearch RBAC scope
Source: CVE Program / CVE List V5
Vulnerability Description
Execution with Unnecessary Privileges (CWE-250) in Kibana’s Fleet plugin debug route handlers can lead reading index data beyond their direct Elasticsearch RBAC scope via Privilege Abuse (CAPEC-122). This requires an authenticated Kibana user with Fleet sub-feature privileges (such as agents, agent policies, and settings management).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
带着不必要的权限执行
Source: CVE Program / CVE List V5
Vulnerability Title
Elastic Kibana Fleet 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elastic Kibana Fleet是荷兰Elastic公司的一个集中管理和监控Elastic Agent的组件。 Elastic Kibana Fleet存在安全漏洞，该漏洞源于不必要的权限执行，可能导致权限滥用和越权读取索引数据。
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 8.0.0 ~ 8.19.13 -

II. Public POCs for CVE-2026-4498

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III. Intelligence Information for CVE-2026-4498

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Other References for CVE-2026-4498 (1)

Same Patch Batch · Elastic · 2026-04-08 · 6 CVEs total

CVE-2026-33466 8.1 HIGH Improper Limitation of a Pathname to a Restricted Directory in Logstash Leading to Arbitra
CVE-2026-33461 7.7 HIGH Incorrect Authorization in Kibana Fleet Leading to Information Disclosure
CVE-2026-33458 6.8 MEDIUM Server-Side Request Forgery (SSRF) in Kibana One Workflow Leading to Information Disclosur
CVE-2026-33459 6.5 MEDIUM Uncontrolled Resource Consumption in Kibana Leading to Denial of Service
CVE-2026-33460 4.3 MEDIUM Incorrect Authorization in Kibana Fleet Leading to Information Disclosure

IV. Related Vulnerabilities

Same product: Kibana
Same vendor: Elastic
Same weakness: CWE-250

V. Comments for CVE-2026-4498

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