CVE-2026-72632
Observable Discrepancy (CWE-203) in Kibana Fleet can lead to information disclosure via Excavation (CAPEC-116). Fleet removes the Elasticsearch API key value of an enrolled Elastic Agent from the responses of its agent listing capability, but that capability accepted caller-supplied filter expressions over the stored field that holds the value, and evaluated them with Kibana's own internal Elasticsearch privileges rather than the caller's. Because the number of matching agents is reported back to the caller, the difference between a matching and a non-matching filter formed a side channel from which the full API key value could be reconstructed one character at a time with a short sequence of requests.
- Score
- 7.1 high
- Published
- 2026-08-13
- Links
- NVD · cve.org · Report wrong data
Matched ports (5)
| Port | Package | Version | Status | Maintainer |
|---|---|---|---|---|
| textproc/kibana91 | kibana91 | 9.1.10 | unaddressed | elastic@FreeBSD.org |
| textproc/kibana92 | kibana92 | 9.2.8 | unaddressed | elastic@FreeBSD.org |
| textproc/kibana93 | kibana93 | 9.3.8 | possibly backported | elastic@FreeBSD.org |
| textproc/kibana8 | kibana8 | 8.19.21 | fixed by update | elastic@FreeBSD.org |
| textproc/kibana94 | kibana94 | 9.4.7 | fixed by update | elastic@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>8.19.20</lt></range>
</package>
<package>
<name>kibana92</name>
<range><lt>8.19.20</lt></range>
</package>
</affects>
<description>
<body xmlns="http://www.w3.org/1999/xhtml">
<p>Observable Discrepancy (CWE-203) in Kibana Fleet can lead to
information disclosure via Excavation (CAPEC-116). Fleet removes the
Elasticsearch API key value of an enrolled Elastic Agent from the
responses of its agent listing capability, but that capability
accepted caller-supplied filter expressions over the stored field that
holds the value, and evaluated them with Kibana's own internal
Elasticsearch privileges rather than the caller's. Because the number
of matching agents is reported back to the caller, the difference
between a matching and a non-matching filter formed a side channel
from which the full API key value could be reconstructed one character
at a time with a short sequence of requests.</p>
</body>
</description>
<references>
<cvename>CVE-2026-72632</cvename>
<url>https://nvd.nist.gov/vuln/detail/CVE-2026-72632</url>
</references>
<dates>
<discovery>2026-08-13</discovery>
<entry>2026-10-26</entry>
</dates>
</vuln>