Bug 2515553 (CVE-2026-72656) - CVE-2026-72656 elasticsearch: Elasticsearch: Denial of Service via excessive memory allocation in ES|QL queries
Summary: CVE-2026-72656 elasticsearch: Elasticsearch: Denial of Service via excessive ...
Keywords:
Status: NEW
Alias: CVE-2026-72656
Product: Security Response
Classification: Other
Component: vulnerability-draft
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-13 19:33 UTC by OSIDB Bzimport
Modified: 2026-08-17 20:00 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-13 19:33:25 UTC 
Memory Allocation with Excessive Size Value (CWE-789) in the ES|QL query processing of Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user able to submit ES|QL queries could send a specially crafted query whose evaluation allocates an unbounded amount of heap memory, exhausting the available heap on the receiving node and causing the node to become unavailable.
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