CVE-2026-102409: CWE-674 Uncontrolled Recursion in Elastic Elasticsearch
Description
Uncontrolled Recursion (CWE-674) in Elasticsearch can allow an authenticated user with low privileges to terminate an Elasticsearch node, resulting in denial of service, via Excessive Allocation (CAPEC-130).
CVSS v3.1
Score 6.5medium
Affected software
Elastic
Elasticsearch
pkg:maven/org.elasticsearch/elasticsearchRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-674) in Elasticsearch involves uncontrolled recursion that can be triggered by an authenticated user with low privileges. Exploiting this flaw results in excessive resource allocation (CAPEC-130), causing the Elasticsearch node to terminate and leading to a denial of service condition. The vulnerability affects Elasticsearch versions from 9.2.0 through 9.2.8, 9.3.0 through 9.3.8, 9.4.0 through 9.4.7, and 9.5.0 through 9.5.4. There is no indication of active exploitation in the wild, and no patch or official fix information is provided in the source data.
Potential Impact
An attacker with low privileges who is authenticated can cause a denial of service by terminating an Elasticsearch node through uncontrolled recursion and excessive resource allocation. This does not affect confidentiality or integrity but impacts availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor Elastic's official advisories for updates. In the meantime, restrict access to authenticated users and consider limiting privileges to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-09-29T02:06:02.426Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac550e02cdf04f656d8a13c
Added to database: 10/06/2026, 19:49:52 UTC
Last enriched: 10/06/2026, 20:04:19 UTC
Last updated: 10/06/2026, 20:28:09 UTC
Views: 6
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