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CVE-2026-78595— Missing Authorization in Kibana Fleet Plugin Leading to Cross-Space Agent Data Disclosure

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公司开源的一个视觉化仪表板。 Elastic kibana 9.1.0版本至9.4.5版本和9.5.0版本至9.5.2版本存在授权问题漏洞，该漏洞源于Kibana Fleet功能存在授权缺失问题，具有只读Fleet代理权限的已认证用户可能枚举其他Kibana空间中的代理元数据并访问诊断内容，导致信息泄露。

CVSS 4.3 · Medium EPSS 0.28% · P19

Affected Version Matrix 2

VendorProduct Version RangeStatus
Elastic Kibana 9.1.0≤ 9.4.5 affected
9.5.0≤ 9.5.2 affected
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I. Basic Information for CVE-2026-78595

Vulnerability Information
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Vulnerability Title
Missing Authorization in Kibana Fleet Plugin Leading to Cross-Space Agent Data Disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
Missing Authorization in Kibana Leading to Information Disclosure / Missing Authorization (CWE-862) in the Kibana Fleet feature can lead to information disclosure via Privilege Abuse (CAPEC-122). An authenticated user holding read-level Fleet agent privileges in one Kibana space could enumerate agent metadata and access diagnostic content belonging to agents enrolled in other Kibana spaces.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Elastic kibana 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elastic Kibana是荷兰Elastic公司开源的一个视觉化仪表板。 Elastic kibana 9.1.0版本至9.4.5版本和9.5.0版本至9.5.2版本存在授权问题漏洞，该漏洞源于Kibana Fleet功能存在授权缺失问题，具有只读Fleet代理权限的已认证用户可能枚举其他Kibana空间中的代理元数据并访问诊断内容，导致信息泄露。
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 9.1.0 ~ 9.4.5 -

II. Public POCs for CVE-2026-78595

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III. Intelligence Information for CVE-2026-78595

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Vendor Advisories for CVE-2026-78595 (1)

Same Patch Batch · Elastic · 2026-09-03 · 7 CVEs total

CVE-2026-82302 8.1 HIGH Incorrect Authorization in Kibana Leading to Unauthorized Configuration Modification
CVE-2026-78583 8.1 HIGH Incorrect Authorization in Kibana Leading to Privilege Escalation
CVE-2026-82299 6.5 MEDIUM Incorrect Authorization in Kibana Leading to Information Disclosure
CVE-2026-82298 4.3 MEDIUM Incorrect Authorization in Kibana Leading to Denial of Service
CVE-2026-78596 4.3 MEDIUM Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations
CVE-2026-78593 4.3 MEDIUM Improper Control of Generation of Code in Kibana Leading to Privilege Escalation

IV. Related Vulnerabilities

Same product: Kibana
Same vendor: Elastic
Same weakness: CWE-862

V. Comments for CVE-2026-78595

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