CVE-2026-72645
Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding only read privileges on a single index can submit one small, specially crafted search request that causes an excessively large memory allocation, exhausting the JVM heap and terminating the affected node.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS probability
- 0.30%
- CWE
- CWE-789
- Published
- 2026-08-13
- Last modified
- 2026-08-13
Affected products
- Elastic Elasticsearch
- Elastic Elasticsearch
- Elastic Elasticsearch
Weakness type
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