๐Ÿ” CVE Alert

CVE-2026-102409

MEDIUM 6.5

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

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).

CWE CWE-674
Vendor elastic
Product elasticsearch
Ecosystems
Industries
Technology
Published Oct 6, 2026
Last Updated Oct 6, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected Versions

Elastic / Elasticsearch
9.2.0 โ‰ค 9.2.8 9.3.0 โ‰ค 9.3.8 9.4.0 โ‰ค 9.4.7 9.5.0 โ‰ค 9.5.4

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
discuss.elastic.co: https://discuss.elastic.co/t/elasticsearch-9-4-8-9-5-5-security-update-esa-2026-190/390863