CVE-2026-72638
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS probability
- 0.30%
- CWE
- CWE-674
- Published
- 2026-08-13
- Last modified
- 2026-08-13
Affected products
- Elastic Elasticsearch
- Elastic Elasticsearch
Weakness type
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