Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service (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.
Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service (CVE-2026-72645)
Description
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.
Affected software
pkg:bitnami/elasticsearchRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-elasticsearch-2026-72645
- Osv Schema Version
- 1.6.2
- Aliases
- ["CVE-2026-72645"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- Medium
- Cvss Version
- null
Threat ID: 6a85b4b2acd9273b492514c3
Added to database: 08/19/2026, 13:50:42 UTC
Last updated: 08/19/2026, 13:50:42 UTC
Views: 1
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