# CVE-2026-56148

## Summary

- **CVE ID:** CVE-2026-56148
- **Severity:** MEDIUM
- **CVSS Score:** 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-674
- **Published:** Jul 1, 2026
- **Last Modified:** Jul 1, 2026

## Description

Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted query that causes excessive resource consumption while the request is processed, which may render the affected node unavailable.

## Affected Products

- Elastic — Elasticsearch (9.4.0)
- Elastic — Elasticsearch (9.0.0)
- Elastic — Elasticsearch (8.0.0)

## References

- [CNA](https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-42)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.47%
- **EPSS Percentile:** 39.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._