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VULNERABILITIES

CVE-2026-72643 Details

Description

Kibana Agent Builder determines whether a caller owns a private agent by comparing a stable user identifier when one is recorded, and falling back to a comparison of the username when it is not. A username is not unique across Elasticsearch authentication realms, so two distinct principals that share a username in different realms are treated as the same owner. This discloses the configuration and instructions of an agent the caller does not own, and allows that agent to be altered or removed.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://discuss.elastic.co/t/kibana-9-4-5-9-5-1-security-update-esa-2026-124/389538 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-863Incorrect Authorization[email protected]

Affected Products

ProductVersions
elastic kibana
>= 9.4.0, < 9.4.5
9.5.0

CPE

  • cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*
  • cpe:2.3:a:elastic:kibana:9.5.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-72643
NVD Published Date:
Aug 13, 2026
NVD Last Modified:
Sep 3, 2026
Source:
[email protected]