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CVE-2026-33458— Server-Side Request Forgery (SSRF) in Kibana One Workflow Leading to Information 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Kibana One工作流中的服务器端请求伪造，可能导致具有工作流创建和执行权限的经过身份验证的用户绕过主机允许列表限制，泄露敏感内部端点信息。

CVSS 6.8 · Medium EPSS 0.38% · P30
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I. Basic Information for CVE-2026-33458

Vulnerability Information
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Vulnerability Title
Server-Side Request Forgery (SSRF) in Kibana One Workflow Leading to Information Disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
Server-Side Request Forgery (CWE-918) in Kibana One Workflow can lead to information disclosure. An authenticated user with workflow creation and execution privileges can bypass host allowlist restrictions in the Workflows Execution Engine, potentially exposing sensitive internal endpoints and data.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
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Kibana One工作流中的服务器端请求伪造，可能导致具有工作流创建和执行权限的经过身份验证的用户绕过主机允许列表限制，泄露敏感内部端点信息。
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)

II. Public POCs for CVE-2026-33458

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III. Intelligence Information for CVE-2026-33458

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Vendor Advisories for CVE-2026-33458 (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-2026-4498 7.7 HIGH Execution with Unnecessary Privileges in Kibana Leading to reading index data beyond their
CVE-2026-33461 7.7 HIGH Incorrect Authorization in Kibana Fleet Leading to Information Disclosure
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-918

V. Comments for CVE-2026-33458

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