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CVE details

CVE-2026-49095

Improper Input Validation (CWE-20) in the Kibana Fleet agent policy management feature can lead to privilege escalation. An authenticated user with Fleet management privileges can manipulate agent policy configuration by injecting values into a configuration override mechanism that is not adequately validated. An attacker can cause Elastic Agents to be issued API keys with elevated Elasticsearch privileges, potentially granting unauthorized read and write access to sensitive Elasticsearch security indices beyond what is intended for the Fleet management role.

Score
6.5 medium
Published
2026-05-28
Links
NVD · cve.org

Matched ports (2)

PortPackageVersionStatusMaintainer
textproc/kibana91kibana919.1.10unaddressedelastic@FreeBSD.org
textproc/kibana92kibana929.2.8unaddressedelastic@FreeBSD.org

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>kibana91</name>
	<range><lt>8.19.16</lt></range>
      </package>
      <package>
	<name>kibana92</name>
	<range><lt>8.19.16</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>Improper Input Validation (CWE-20) in the Kibana Fleet agent policy
	management feature can lead to privilege escalation. An authenticated
	user with Fleet management privileges can manipulate agent policy
	configuration by injecting values into a configuration override
	mechanism that is not adequately validated. An attacker can cause
	Elastic Agents to be issued API keys with elevated Elasticsearch
	privileges, potentially granting unauthorized read and write access to
	sensitive Elasticsearch security indices beyond what is intended for
	the Fleet management role.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-49095</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-49095</url>
    </references>
    <dates>
      <discovery>2026-05-28</discovery>
      <entry>2026-10-26</entry>
    </dates>
  </vuln>