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CVE-2026-72644— Uncaught Exception 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.

Kibana 中的未捕获异常（CWE-248）可能导致服务拒绝（DoS）。攻击者可通过输入数据操纵（CAPEC-153）触发该问题。仅需具备低权限功能访问权（用于使用可观测性 AI 助手）的已认证用户，可以提交一个精心构造的请求，从而引发未处理的错误状态，导致 Kibana 进程终止，进而使该实例上的所有用户和空间均无法获得服务，直到服务被重新启动。

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-72644

Vulnerability Information
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Vulnerability Title
Uncaught Exception in Kibana Leading to Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
Uncaught Exception (CWE-248) in Kibana can lead to a denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only the low-privileged feature access required to use the Observability AI Assistant can submit a specially crafted request that produces an unhandled error condition, terminating the Kibana process and denying service to all users and spaces on that instance until it is restarted.
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
未捕获的异常
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Elastic Kibana 9.1.7 ~ 9.4.4 -

II. Public POCs for CVE-2026-72644

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III. Intelligence Information for CVE-2026-72644

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Other References for CVE-2026-72644 (1)

Same Patch Batch · Elastic · 2026-09-01 · 20 CVEs total

CVE-2026-72649 8.8 HIGH Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution
CVE-2026-63137 8.3 HIGH Incorrect Authorization in Kibana Leading to Privilege Escalation
CVE-2026-78592 7.3 HIGH Improper Limitation of a Pathname to a Restricted Directory in Kibana Leading to Unauthori
CVE-2024-14047 7.2 HIGH Improper Link Resolution Before File Access ('Link Following') in Winlogbeat Leading to Ar
CVE-2026-33465 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Servic
CVE-2026-63138 6.5 MEDIUM Improper Neutralization of Special Elements in Data Query Logic in Kibana Leading to Infor
CVE-2026-78608 6.5 MEDIUM Missing Authorization in Kibana Leading to Information Disclosure
CVE-2026-72654 6.5 MEDIUM Execution with Unnecessary Privileges in Kibana Leading to Information Disclosure
CVE-2026-72628 6.5 MEDIUM Improper Handling of Highly Compressed Data in Kibana Leading to Denial of Service
CVE-2026-72652 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Servic
CVE-2026-72682 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Servic
CVE-2026-78605 5.9 MEDIUM Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') in Elasticsearch L
CVE-2026-78607 5.4 MEDIUM Missing Authorization in Elasticsearch Leading to Information Disclosure
CVE-2026-72641 5.4 MEDIUM Incorrect Authorization in Kibana Leading to Unauthorized Modification of Data
CVE-2026-56143 4.9 MEDIUM Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of
CVE-2026-72633 4.3 MEDIUM Incorrect Authorization in Kibana Leading to Unauthorized Disabling of Privilege Monitorin
CVE-2026-78603 4.3 MEDIUM Missing Authorization in Kibana Leading to Unauthorized Disclosure of Fleet Deployment Met
CVE-2026-78597 4.3 MEDIUM Missing Authorization in Kibana Entity Store Leading to Unauthorized API Key Creation
CVE-2026-78606 4.2 MEDIUM Incorrect Authorization in Kibana Leading to Unauthorized Disclosure, Modification, and De

IV. Related Vulnerabilities

Same product: Kibana
Same vendor: Elastic
Same weakness: CWE-248

V. Comments for CVE-2026-72644

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