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CVE-2026-72638

nvd nist
Published: Aug 13, 2026Modified: Sep 1, 2026

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.8 / Impact: 3.6
Source: security@elastic.co (Secondary)

Description

Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged index creation permissions can submit a single request containing a specially crafted, malformed custom analysis definition that is resolved recursively without a cycle or depth check, exhausting the thread stack and terminating the affected node.

Affected (2)

Elastic
1 product
Elasticsearch
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Elastic
Elasticsearch
From 8.0.0 to 8.19.20
Elasticsearch
From 9.0.0 to 9.4.5

Related CWEs

CWE-674
Uncontrolled Recursion
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

References (1)

Source: security@elastic.co
Vendor Advisory

Timeline

No history available yet.