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CVE-2026-72668— Unintended Proxy or Intermediary ('Confused Deputy') in Kibana Leading to Privilege Escalation

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 Agent Builder 中存在非预期的代理或中间人（“混淆 deputy”）漏洞（CWE-441），可能导致权限提升。一个非管理员用户如果能够编辑共享的代理，则可能以更高权限用户的身份执行特权操作，而该高权限用户随后会与代理进行交互。如果同一用户还能创建工作流，则此漏洞可能导致对 Kibana 和 Elasticsearch 集群的完全控制。

CVSS 7.3 · High EPSS 0.18% · P7
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I. Basic Information for CVE-2026-72668

Vulnerability Information
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Vulnerability Title
Unintended Proxy or Intermediary ('Confused Deputy') in Kibana Leading to Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
Unintended Proxy or Intermediary ('Confused Deputy') (CWE-441) in Kibana Agent Builder can lead to privilege escalation. A non-administrative user able to edit a shared agent could cause privileged operations to be carried out under the identity of a higher-privileged user who subsequently interacts with that agent. Where the same user can also author workflows, this can extend to full administrative control of Kibana and of the Elasticsearch cluster.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
未有动机的代理或中间人(混淆代理)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Elastic Kibana 9.4.0 ~ 9.4.6 -

II. Public POCs for CVE-2026-72668

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III. Intelligence Information for CVE-2026-72668

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Other References for CVE-2026-72668 (1)

Same Patch Batch · Elastic · 2026-09-26 · 11 CVEs total

CVE-2026-94397 6.5 MEDIUM Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service
CVE-2026-94396 6.5 MEDIUM Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service
CVE-2026-94400 6.5 MEDIUM Uncontrolled Resource Consumption in Kibana Leading to denial of service
CVE-2026-94399 6.5 MEDIUM Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service
CVE-2026-94398 6.5 MEDIUM Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service
CVE-2026-82300 6.5 MEDIUM Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
CVE-2026-82294 6.5 MEDIUM Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
CVE-2026-78582 6.5 MEDIUM Missing Authorization in Kibana Leading to Unauthorized Deletion of Data
CVE-2026-72662 6.3 MEDIUM Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Disclos
CVE-2026-94408 4.9 MEDIUM Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service

IV. Related Vulnerabilities

Same product: Kibana
Same vendor: Elastic
Same weakness: CWE-441

V. Comments for CVE-2026-72668

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