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.

  • Published Sep 1, 2026
  • CVSS 8.8 high
  • 0.9% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-72649 at the National Vulnerability Database