CVE-2026-26939— Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration
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I. Basic Information for CVE-2026-26939
Vulnerability Information
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Vulnerability Title
Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration
Source: NVD (National Vulnerability Database)
Vulnerability Description
Missing Authorization (CWE-862) in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration (host isolation, process termination, and process suspension) via CAPEC-1 (Accessing Functionality Not Properly Constrained by ACLs). This requires an authenticated attacker with rule management privileges.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
Elastic Kibana 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elastic Kibana是Elastic公司的一个可用数据可视化仪表板软件。 Elastic Kibana存在安全漏洞，该漏洞源于服务器端检测规则管理缺少授权，可能导致经过身份验证的攻击者配置未经授权的端点响应操作。
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
II. Public POCs for CVE-2026-26939
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Same Patch Batch · Elastic · 2026-03-19 · 4 CVEs total
| CVE-2026-26940 | 6.5 MEDIUM | Improper Validation of Specified Quantity in Input in Kibana Leading to Denial of Service |
| CVE-2026-26931 | 5.7 MEDIUM | Memory Allocation with Excessive Size Value in Metricbeat Leading to Denial of Service |
| CVE-2026-26933 | 5.7 MEDIUM | Improper Validation of Array Index in Packetbeat Leading to Denial of Service |
IV. Related Vulnerabilities
Same product: Kibana
- CVE-2026-33458
Server-Side Request Forgery (SSRF) in Kibana One Workflow Le - CVE-2026-33459
Uncontrolled Resource Consumption in Kibana Leading to Denia - CVE-2026-33460
Incorrect Authorization in Kibana Fleet Leading to Informati - CVE-2026-33461
Incorrect Authorization in Kibana Fleet Leading to Informati - CVE-2026-4498
Execution with Unnecessary Privileges in Kibana Leading to r
Same vendor: Elastic
- CVE-2026-33467
Improper Verification of Cryptographic Signature in Elastic - CVE-2026-33466
Improper Limitation of a Pathname to a Restricted Directory - CVE-2026-33458
Server-Side Request Forgery (SSRF) in Kibana One Workflow Le - CVE-2026-33459
Uncontrolled Resource Consumption in Kibana Leading to Denia - CVE-2026-33460
Incorrect Authorization in Kibana Fleet Leading to Informati
Same weakness: CWE-862
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WordPress TheCartPress 1.5.3.6 Privilege Escalation Unauthen - CVE-2025-15634
HCL BigFix WebUI is affected by a missing authorization vuln - CVE-2026-42297
Argo Workflows Is Missing Authorization in Sync ConfigMap Pr - CVE-2026-42174
Kirby: User avatar creation, replacement and deletion are no - CVE-2026-42137
Kirby: `pages.access/list` and `files.access/list` permissio
V. Comments for CVE-2026-26939
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