Vulnerability Intelligence Report
Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution
CVE-2026-72649
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.
Deserialization
No Active Exploit Signals
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-502 ↗CWE-502 Deserialization of Untrusted Data
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Elastic | Elasticsearch | 8.0.0 <= 8.19.19 (affected), 9.0.0 <= 9.4.4 (affected), 9.5.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Vulnerability Class
Deserialization
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Elastic · Vendor · Netherlands |
| Reserved | 2026-08-10T11:17:38 |
| Published | 2026-09-01T19:20:17 |
| Last Updated | 2026-09-02T03:55:56 |
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