CVE-2026-94399: Elastic Elasticsearch

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)

Affected products

• Elastic Elasticsearch: from 8.0.0, before 8.19.22 (fixed in 8.19.22); from 9.0.0, before 9.4.7 (fixed in 9.4.7); from 9.5.0, before 9.5.4 (fixed in 9.5.4)

Published 2026-09-26. Last modified 2026-09-29.