6.5
Medium
CVE-2026-63136 Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Elasticsearch 9.3 | 9.3.0 → 9.3.3 | No fix stated |
| Elasticsearch 9.0 | 9.0.0 → 9.2.8 | No fix stated |
| Elasticsearch 8.0 | 8.0.0 → 8.19.14 | No fix stated |
Other CVEs of Elasticsearch
The 91 CVEs of Elasticsearch →
CVE-2026-115715
Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to denial of service via a…
6.5
Medium
CVE-2026-115710
Use of Cache Containing Sensitive Information (CWE-524) in Elasticsearch can lead to information disclosure and…
4.2
Medium
CVE-2026-115298
Incorrect Authorization (CWE-863) in Elasticsearch can lead to information disclosure via Accessing Functionality Not…
4.3
Medium
CVE-2026-115290
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads…
7.5
High