CVE-2026-103008
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to Denial of Service via a specially crafted request that causes the server to construct and process a deeply nested data structure with no bound on recursion depth. Elasticsearch contains an uncontrolled recursion weakness in how it builds and serializes geometry values produced by scripted runtime fields. Unlike geometry supplied as text, which is subject to a nesting-depth limit, geometry constructed from a script's output is not bounded. An authenticated user with read access to a single index can submit a request defining such a field with a script that produces a deeply nested structure. Processing this request recurses past the available stack space, causing the affected node to terminate. The node does not recover automatically on all deployments and may require manual intervention to restore service.
Matched ports (1)
| Port | Package | Version | Status | Maintainer |
|---|---|---|---|---|
| textproc/py-elasticsearch | py312-elasticsearch | 9.5.1 | unaddressed | sunpoet@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>py312-elasticsearch</name>
<range><lt>8.19.23</lt></range>
</package>
</affects>
<description>
<body xmlns="http://www.w3.org/1999/xhtml">
<p>Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to Denial
of Service via a specially crafted request that causes the server to
construct and process a deeply nested data structure with no bound on
recursion depth. Elasticsearch contains an uncontrolled recursion
weakness in how it builds and serializes geometry values produced by
scripted runtime fields. Unlike geometry supplied as text, which is
subject to a nesting-depth limit, geometry constructed from a script's
output is not bounded. An authenticated user with read access to a
single index can submit a request defining such a field with a script
that produces a deeply nested structure. Processing this request
recurses past the available stack space, causing the affected node to
terminate. The node does not recover automatically on all deployments
and may require manual intervention to restore service.</p>
</body>
</description>
<references>
<cvename>CVE-2026-103008</cvename>
<url>https://nvd.nist.gov/vuln/detail/CVE-2026-103008</url>
</references>
<dates>
<discovery>2026-10-06</discovery>
<entry>2026-10-26</entry>
</dates>
</vuln>