Medium severity6.5NVD Advisory· Published Jul 21, 2026· Updated Aug 7, 2026
CVE-2026-63136
CVE-2026-63136
Description
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A user with search privileges can submit a specially crafted search request that causes a data node to exhaust available heap memory, resulting in node unavailability and cluster degradation. An attacker could leverage this vulnerability to cause cluster downtime requiring manual intervention to restore service.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*range: >=8.0.0,<8.19.15
- (no CPE)
Patches
Vulnerability mechanics
References
1News mentions
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