# CVE-2026-72649

## Summary

- **CVE ID:** CVE-2026-72649
- **Severity:** HIGH
- **CVSS Score:** 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-502
- **Published:** Sep 1, 2026
- **Last Modified:** Sep 2, 2026

## Description

Deserialization of Untrusted Data (CWE-502) in the Elasticsearch machine learning component can lead to remote code execution via Object Injection (CAPEC-586). A specially crafted trained model artifact could cause attacker-controlled logic to execute with a materially broader system-call surface than intended. Exploitation requires an authenticated user with sufficient privileges to create and deploy trained models.

## Affected Products

- Elastic — Elasticsearch (8.0.0)
- Elastic — Elasticsearch (9.0.0)
- Elastic — Elasticsearch (9.5.0)

## References

- [CNA](https://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-9-5-1-security-update-esa-2026-114/390087)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.58%
- **EPSS Percentile:** 46.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._