CVEvulnerability

CVE-2026-72656

6.5 MEDIUM Published 2026-08-13 Modified 2026-09-04 Official page ↗
Status
Analyzed
Published
2026-08-13
Last modified
2026-09-04
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-789

Description

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.

Affected configurations

• elastic elasticsearch (>= 8.11.0 < 8.18.0)

Related

Weakness · CWE (1)

  • CWE-789 Memory Allocation with Excessive Size Value weakness

References