CVE-2026-94398CWE-400denial-of-service

CVE-2026-94398

Medium · published September 27, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
35.3
In the wild
Unconfirmed
What it is

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)

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
0.00420 · 35.3th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-09-27T01:16Z
Affected products (3)
ProductVersionsFixed in
elastic/elasticsearch≥ 8.12.0, < 8.19.228.19.22
elastic/elasticsearch≥ 9.0.0, < 9.4.79.4.7
elastic/elasticsearch≥ 9.5.0, < 9.5.49.5.4
References (1)
https://discuss.elastic.co/t/elasticsearch-8-19-22-9-4-7-9-5-4-security-update-esa-2026-179/390683 · [email protected]
EPSS history
Timeline
  • 28 SEP 03:30Z
    EPSS moved — → 0%
    epss
  • 26 SEP 20:42Z
    Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service
    cvelistv5