8.8
High
CVE-2026-72649 Deserialization of Untrusted Data (CWE-502) in the Elasticsearch machine learning component can lead to remote code…
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Elasticsearch | 9.5.0 | No fix stated |
| Elasticsearch 9.0 | 9.0.0 → 9.4.4 | No fix stated |
| Elasticsearch 8.0 | 8.0.0 → 8.19.19 | No fix stated |
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