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CVE details

CVE-2026-26940

Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead Denial of Service via Excessive Allocation (CAPEC-130). The vulnerability allows an authenticated user to send a specially crafted Timelion expression that overwrites internal series data properties with an excessively large quantity value.

Score
6.5 medium
Published
2026-03-19
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>8.19.13</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>Improper Validation of Specified Quantity in Input (CWE-1284) in the
	Timelion visualization plugin in Kibana can lead Denial of Service via
	Excessive Allocation (CAPEC-130). The vulnerability allows an
	authenticated user to send a specially crafted Timelion expression
	that overwrites internal series data properties with an excessively
	large quantity value.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-26940</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-26940</url>
    </references>
    <dates>
      <discovery>2026-03-19</discovery>
      <entry>2026-10-26</entry>
    </dates>
  </vuln>