CVE-2026-56149

medium

Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.

References

https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-43

Details

Source: Mitre, NVD

Published: 2026-07-01

Updated: 2026-07-01

Risk Information

CVSS v2

Base Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:M/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 4.9

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Severity: Medium