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CVE details

CVE-2026-42398

Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection allowlist. By configuring a Webhook connector with a crafted target, an attacker can cause Kibana to issue outbound requests to destinations that the egress restriction controls were intended to block.

Score
7.7 high
Published
2026-05-28
Links
NVD · cve.org

Matched ports (1)

PortPackageVersionStatusMaintainer
textproc/kibana91kibana919.1.10unaddressedelastic@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>9.2.8</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>Server-Side Request Forgery (CWE-918) in Kibana allows authenticated
	users with connector management privileges to bypass the
	operator-configured connection allowlist. By configuring a Webhook
	connector with a crafted target, an attacker can cause Kibana to issue
	outbound requests to destinations that the egress restriction controls
	were intended to block.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-42398</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-42398</url>
    </references>
    <dates>
      <discovery>2026-05-28</discovery>
      <entry>2026-10-26</entry>
    </dates>
  </vuln>