CVE-2026-56145CWE-400denial-of-service

CVE-2026-56145

Medium · published July 22, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
39.8
In the wild
Unconfirmed
What it is

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user with permission to execute EQL sequence queries against an index they control can send a specially crafted query that triggers excessive memory consumption, causing the Elasticsearch node to crash.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00472 · 39.8th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-07-22T00:17Z
Affected products (3)
ProductVersionsFixed in
elastic/elasticsearch≥ 8.0.0, < 8.19.188.19.18
elastic/elasticsearch≥ 9.0.0, < 9.3.79.3.7
elastic/elasticsearch≥ 9.4.0, < 9.4.49.4.4
References (1)
https://discuss.elastic.co/t/elasticsearch-8-19-18-9-3-7-9-4-4-security-update-esa-2026-57/388556 · [email protected]
EPSS history
Timeline
  • 21 JUL 20:04Z
    Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
    cvelistv5